I recently bought a new Husqvarna riding mower, Model # YTH22V42, to replace a really old Ariens, and I hate it. Having to push the gas pedal, which the Ariens did not have, is killing my 70-year-old hip joint. The ride is so rough, the insides of my knees are repeatedly slamming against the middle body of the mower. I've used it only about 4 times (5 hours) and now suffer from constant hip and knee pain, which I did not have before. My question is, does anyone have any suggestions as to what I can do about it? I've been looking into knee pads but it seems like they protect the kneecap, which is not where I'm hitting.