I typically use a blade 5-6 times before tossing it. I'm fairly new to DE shave (about 7 months now) and I've tried several blades (Derby, Astra SP, Feather, etc.). It seems like every blade I use has a break-in period of about 2 shaves. The blade performs better on shaves 3, 4, 5 typically. I use the same prep method every time. Anyone else experience this? BTW I've settled on Astra SP because they seemed to give me the most consistent comfortable shave, but still have the "break-in period".