I have a K4 600 <-------as you can see. I'm 6' tall, so I'm a little bunched up on it. Question: What exactly do ADJUSTABLE rearsets accomplish?? I know they can give you more ground clearance, I'm lookin for more leg room. Can you adjust them to move your feet back or down to give you more leg room (or rather more elbow room, my elbows are currently restin on the side of my calves)Any recommendations on which sets to get?