Your thoughts echo everyone elses regarding the Premium.
The only blade I felt varied was using a 10 tuck of Feather blades during the FFFMM. All blades from the same tuck and some I'd get 3-4 really great shaves, others I'd only get 1-2. The only other blades I've used as extensively are Polsilver and Derby Extra and I havent had that issue with them.
I have yet to try a Feather, although I got some in a sample pack way back when. They have a formidable reputation and as I tend to flail around a bit I thought that I'd put them on one side until I grew calmer.
Perhaps they will have to bury them with me.