SR101 has definitely grown on me, especially after how well it performed with my butcher-job of an attempt at convexing the edge of my Mini Uncle Mojo after I accidentally chipped the heck out of it trying to baton through a log with a hardened masonry nail in it. I don't quite have it hair-shaving sharp, but it's better than the factory edge and has a beefy profile that I expect to hold up well to abuse.
The idea of the differential heat treat on the M9LE is dang temping, and that temper line is just beautiful, so I hope I get a shot at it on a waiting list (or at BLADE!)