SMSteve:
I have used the M3 on my R1200S and on my Ducati 907ie. I think it is an excellent tire for what you describe. I also think the Michelin Pilot Power would be great. The 2CT may also be fine, but I have not tried them yet, only the Road 2CT version (for high mileage on a long trip and still have some performance). I believe the Pilot Powers would be fine for track days or spirited running in canyons.
Incidentally, the M3 will hold together pretty well if you have to really stretch it to get home (see pic). I have never had Bridgestones that hung in there as well near the end of the tire's life.
dp
