I recently purchased a grasshopper 225k mid mount and I love it. The first zero turn mower I've ever been on. It has been a learning experience for me but I am beginning to get use to it. My question is that i have trouble driving straight. it seems like the mower will move a little to the left and then a little to the right without moving the steering levers. Do all zero turns do this? My lawn is fairly level. Maybe I just need more time on the mower.