Bic Chrome Platinum (1). I used this in my Piccolo and it opened up weepers everywhere without delivering a smooth shave. For me this blade does not work.
Derby Extra (2) pulled this out of a sample pack that I had.
This blade seems hit or miss for me. This time around it shaved fine in my
QShave set at 3... Kind of puzzling. The last blade tugged like crazy.
Gem Personna stainless steel PTFE blade (7) still some life in the blade but testing different models of Gem razors and starting with a fresh blade each time.
Personna Red (3). I find that's all I can get out of them, didn't want to risk a 4th shave and carve myself up. Switched to an Asco for todays 24 hour of stubble shave in my .68 RR GC.