I finally tried the Derby Premium blades and have been very happy so far. I tried it with my Overlander, Timeless SSSlim, and Karve CuBr OC-F. All 3 were excellent. Did get 2 minor nicks on my stache area with the OC-F, but that is a sensitive area for me and that was an aggressive plate. Otherwise, 3 great, close shaves with no feedback with alcohol based splashes. $8.99 per 100 from TRC is a very worthwhile buy as I see it. I'm not sure what's next and the blade PIF from RayClem has muddied those waters just a bit more.....
integritas pietas fortitudinem