I have an Xtra 12 rear suspension in my sled, and it takes very little to bottom it out. It has Comet gas shocks in it, and I have the springs on the shocks turned all the way up to try and stiffen it, and the other springs I have turned all the way to stiff, and it still bottoms out on the smallest bumps. I only weigh 140 lbs so it's not like I'm really heavy. What can I do to fix it for this winter? I have to replace the track anyway so I might as well fix it while I have it out. I was going to have the shocks rebuilt, and (not that this will effect it) replace the slides.