Please recommend to me which to buy

I currently have RazoRock Game Changer.84
Merkur 37C, Rockwell 6C

I love to use all of them based on how I feel that day and to use Feather on Rockwell 3rd plate but any blades on any plates and Gillette new platinum on any.

I have placed an pre order from Wolfman but may cancel due to the cost.

I am considering buying H&S N075, Timeless 0.69 or 0.95, Blackland Blackbird, Carbon shaving razor or Karve razor.

It is really hard for me to choose one lol

I have 1-1.5mm long and coarse hair mostly under the nose and chin.

Please recommend to me which to buy

The most popular one in your list may very well be the Blackbird. Also have a look at the following thread where I solicited opinion from the veterans for a new high end razor:

https://damnfineshave.com/thread-pl-rank...zor-brands

I currently have RazoRock Game Changer.84
Merkur 37C, Rockwell 6C

I love to use all of them based on how I feel that day and to use Feather on Rockwell 3rd plate but any blades on any plates and Gillette new platinum on any.

I have placed an pre order from Wolfman but may cancel due to the cost.

I am considering buying H&S N075, Timeless 0.69 or 0.95, Blackland Blackbird, Carbon shaving razor or Karve razor.

It is really hard for me to choose one lol

I have 1-1.5mm long and coarse hair mostly under the nose and chin.

Please recommend to me which to buy

If you want more blade feel than the razors you're used to, the Blackbird is worth a try. I'm kinda guessing maybe you don't since you use the 3 plate on the Rockwell most. The Timeless 95 might be a nice pickup. Not overly aggressive, but quite efficient and a beautiful razor.

None. Stick with the GC and enjoy your shaves.

If you want a closer shave with minimal increase in blade feel, go with a Yates Precision 921-M razor. It’s also the most affordable 316L stainless razor of the bunch you mentioned (with the exception of a Brass Karve).

Want and like more blade feel? Try the wonderful Blackbird.

Blackbird is one of the top two Razors I own but not a daily driver, at least for me it's not. I also would second AQU's recommendation for the Yates Precision. I just got one and absolutely love it.

In November, I tried both the Blackbird and the N075 against one another, and also against a P076.  To me, it wasn't even close.  As to the N075 it was smooth, smooth, smooth but also efficient. Effortlessly got BBS shaves. Bought one; it's an effortless driver.  And many folks here, if you poke around, you will see agree with that.  Every time I use it (and I keep trying to find a blade that doesn't work with it - haven't yet) I end up smiling.  And its finishing beats all the others you mention, substantially I think.  It is a top drawer, top quality tool.  As to the Blackbird, despite trying it for three weeks, I never came to like it.  I found it harsh and I always felt as though I was having to be careful to avoid nicks. For a more efficient razor, I just found it uncomfortable and not in the league of others. I really tried to like it; spoke to Shane a few times but it never clicked.  And in terms of simple quality, the H&S beats it hands down (at least for me).  I particularly felt that because at the time I also got the H&S PO76 in titanium to try though the DFS pass-around and, to me, it outperformed the Blackbird in every respect for a more efficient razor.  Easy but efficient, beautiful finishing, and I didn't have to hold my breath worrying about what might happen to my skin.  But a P076 in any finish is pricey (I've ended up with a copper one to keep - amazing).  I've not tried a Yates or a Timeless, so I can't compare those. Finally, I have also used a Karve and I found it acceptable but not special.  Had borrowed it from a friend over the summer, and it just didn't seem that special (at least for me).  I just yesterday got a Carbon in the DFS passaround and will be posting thoughts on that. I'll remember to come back here and update this.  ONE final important point:  with H&S, Blackland, and (I believe) Yates, you can try out the razors and return them if you don't like them.  I don't know about the others.  I'd really recommend going down that road:  get two (or three) and swap them out day after day for two/three weeks.  You'll have a much more informed opinion at the end and you can return the losers in your personal comparison!

IMHO -- I have a GameChanger .84.  Its my preferred daily shaver.  

I've owned a Blackbird.  -- and sold it.
I've tried both the H&S and the Carbon.
If I were buying another razor, I'd choose the Carbon.  However, the H&S would likely be as satisfying.

Again, just my opinion.  

It's your face and your $.

In November, I tried both the Blackbird and the N075 against one another, and also against a P076.  To me, it wasn't even close.  As to the N075 it was smooth, smooth, smooth but also efficient. Effortlessly got BBS shaves. Bought one; it's an effortless driver.  And many folks here, if you poke around, you will see agree with that.  Every time I use it (and I keep trying to find a blade that doesn't work with it - haven't yet) I end up smiling.  And its finishing beats all the others you mention, substantially I think.  It is a top drawer, top quality tool.  As to the Blackbird, despite trying it for three weeks, I never came to like it.  I found it harsh and I always felt as though I was having to be careful to avoid nicks. For a more efficient razor, I just found it uncomfortable and not in the league of others. I really tried to like it; spoke to Shane a few times but it never clicked.  And in terms of simple quality, the H&S beats it hands down (at least for me).  I particularly felt that because at the time I also got the H&S PO76 in titanium to try though the DFS pass-around and, to me, it outperformed the Blackbird in every respect for a more efficient razor.  Easy but efficient, beautiful finishing, and I didn't have to hold my breath worrying about what might happen to my skin.  But a P076 in any finish is pricey (I've ended up with a copper one to keep - amazing).  I've not tried a Yates or a Timeless, so I can't compare those. Finally, I have also used a Karve and I found it acceptable but not special.  Had borrowed it from a friend over the summer, and it just didn't seem that special (at least for me).  I just yesterday got a Carbon in the DFS passaround and will be posting thoughts on that. I'll remember to come back here and update this.  ONE final important point:  with H&S, Blackland, and (I believe) Yates, you can try out the razors and return them if you don't like them.  I don't know about the others.  I'd really recommend going down that road:  get two (or three) and swap them out day after day for two/three weeks.  You'll have a much more informed opinion at the end and you can return the losers in your personal comparison!

Funny, I had the exact opposite experience with the P075. I love my Blackbird SB but usually only use it when I've got 3-4 days growth but nothing I've tried gives me a longer-lasting or closer shave. I really enjoyed the Carbon but get just as good a shave if not better from the Yates Precision and it's quite a bit less expensive. Like you, I have not tried the Timeless. Like MaxP said it's your face and your $ and many of us will have varying experiences with each of these razors.

Funny, I had the exact opposite experience with the P076. I love my Blackbird SB but usually only use it when I've got 3-4 days growth but nothing I've tried gives me a longer-lasting or closer shave. I really enjoyed the Carbon but get just as good a shave if not better from the Yates Precision and it's quite a bit less expensive. Like you, I have not tried the Timeless. Like MaxP said it's your face and your $ and many of us will have varying experiences with each of these razors.

My fault for wandering off Shaver_Brian's question, of course, and bringing in the P076, which is an entirely different kind of razor than the N075, about which he asked (which, itself, is a different razor than some others, it being solidly in the smooth-razor-that-gives-a-great-shave-with-a-sharp (heck, any) blade.  Having said that, the P076 seems to get more varied responses than the N075 and I've seen that reactions often seem to depend on which metal.  I couldn't use the 17-4 at all -- had an absolutely terrible time during the pass-around.  Yet, some folks love it. The P076 Titanium was good for me, but didn't wow me.  Again, others love it (it's one blogger's "goat").  More blade feel than I like (though less than, say, an R41 or Blackbird).  However, the P076 in copper is what wowed me.  Soft and smooth and efficient; I can use it as a daily razor if I want (I know a few folks use the Blackbird daily which, based on my experience, I can't fathom, but razors are so very personal in how people's mileage varies).  I'm about to try the Carbon and will certainly try the Yates, but would like to get it in polished, which isn't available now.