I do not know any other blades that would be sharper than Feather, anyway not that sharper that I could feel a difference. I find Gillette 7O'Clock SharpEdge to be very close or as sharp as Feather. Unfortunately they are nearly as expensive....Are there any blades that are sharper than feather? If so which ones?
If Feather does not perform well for you (well enough to justify the price) chose another one from your sample pack. You did buy a sample pack, didn't you?