Now before anyone says search, I did and the threads were old and I didn't want to bump an ancient thread. Essentially my hands especially the right gets sore, but not from twisting the throttle. Seams to be I lean more of my weight on the bars as the pain is between my thumb and wrist. I have tried sitting more upright however the previous owner installed aftermarket rear sets, which are further back than stock 300 sets. Now I find my rear sets easy to use, but it seems to just automatically put me in a half sport half superbike position and if I sit up, about 1min later I have shifted back into the same position. I don't get a sore back at all. Given I wish to hopefully own a supersport, is there any tips to stop the sore hands?