Between 15 and 100 shaves, I call them "broken in" .
All of my cuts and razor burn usually occurs in the first 5 shaves. 6-15 is the sweet spot, and after that I start using them in more aggressive razors (or higher adjustable settings), and press a bit harder.
I'll stop at 100 simply because it's a nice round number and my Percentile Dice counters don't go any higher.
