Have you tried the Treet 7 Days Platinum?After trying a small handful of sharper blades, I've decided to order a bulk pack of Treet Platinums. They've consistently given me a close, clean, almost irritation free shave time and again.
I say "almost" because I'm still working on my technique, but I get very little razor burn, razor bumps, nicks, cuts, or weepers from them. Just a smooth clean shave. Even with a clean up pass on my notoriously sensitive neck.