Mongoose and Feather super blades

I wonder if this is a bit of a blip with the blades I just bought but I decided to try some Feather Super blades with my Mongoose after using the Feather Pro blades for the past 7 months. Problem is that the openings on the blade don't quite fit over the blade post and as a consequence don't fit in the razor.
As far as I was led to believe the super blades do fit the Mongoose or do I have to be a bit more forceful with the blade so it fits? I've tried 2 blades from the pack so far but I'm not keen on emptying the whole pack.
Any advice you guys have regarding this blade and the Mongoose would be greatly appreciated.

SharpSpine might be able to assist. I know he uses his mongoose a lot.

I received word back from Mongoose and some of the B2 razors had a problem whereby the blade posts were were machined slightly too wide and would not take Feather Super blades because of this. So I have to get it sent back for minor modification work for it too accept the super blades.

Hmmm....I bought my B2 second hand and the Supers go on but they dont come off without something to pry it off which can be dangerous given the thing im prying off is a blade. And when I say pry, they are on there. I may need to reach out to Mongoose as well. Good info!

Hmmm....I bought my B2 second hand and the Supers go on but they dont come off without something to pry it off which can be dangerous given the thing im prying off is a blade. And when I say pry, they are on there. I may need to reach out to Mongoose as well. Good info!

I'm not sure how keen they will be at carrying out the work on a razor thats been sold on. They are using my original order details ( PayPal ) to issue postage refund but it's certainly worth a try. Good luck and let me know how you get on.
Will

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