[Patricoo]

Hmmm. I used to do a one-hand three finger style. (while resting I had my middle finger on up, and other two fingers on left and right. Recently though I couldn't get past this handicapped "hardcore" method to improve past level 8. It has no movement so you might as well go with it if your worried about agitating your injury. I still have the same one-hand skill, so after two or three warm of songs you really shouldn't worry about losing your old "hardcore" status so long as you still have the same mobility.