My riding buddy has recently switched from the Diablo's to the Powers on his '03 Mille R. He is a very good rider. Better than me.(Not saying much)

Has a dedicated 600cc track bike and has ridden tracks on both coasts and in Nevada. As well as attending Freddie Spencers school. I value his opinion. He only has about 600 street miles on them. Most of those have been in 45-60 degree weather here in Maryland. So far he is very impressed with them. Too early to tell about wear rate. Michellin claims they will last even though they are soft. Or how they will hold up when the temp. rises. My DC front is toast and I plan on trying the power up front. But Jan 1 may be the last good riding day here and I will have to wait till spring.