Gents, I remember some of you guys saying your knees were hurting. Well, my left knee seems to be bothering me more, but I can't pin it on the sitting position. However, I was looking at the rear set options and it seems they are all adjustable up and back. I would think I want them to be able to be adjusted down. What did you guys do to help alleviate knee issues with regards to the rear sets? Does a higher seat help also?