Well, I'm using the same set of sppp since a month now, around 60 hours of play. Last week I started to have arm pain, soreness all over the arm plus in the elbow and back. It started after I played more then 2 hours for 7 or 8 days in a row. I thought it was from over playing, but since last week, I skip one day between all my matches and still have pain. My question: - is it that sppp is hard on the arm ( I played with alu power since more then 2 years before trying sppp without havin any pain) or - does the strings have that effet after lots of hour of play? Since they don't move at all (less less moving then alu power) they aren't near to break. What you think?