I know I have a different sled than you guys, but just thought I would add, I'm about 175lbs. dressed and started out at holes 2 and 4 with preload at 3. We were riding 85-90% nice, smooth and flat groomed trails and my sled was darting like crazy and tail wagging-- almost like it was pivoting around on the front of the skid. When I get off the sled the front of the skid was on the ground and the rear was slightly off the ground. It rode great through the bumps like this, but handled terrible. So I tried the #5 hole and it flattened the skid out so the whole skid sat flat on the ground and it handled 10 times better-- the ride wasn't as cushy, but still waaay better than the noaction, so I dropped the preload down to 2 and it seems to be where I like it now.