I've got a 04 Summit 800 151. The snow here in sask has been getting hard/ice on top and I've been having trouble with controlling my steering. It seems too loose and the sled wanders where ever the hard snow takes it. I tightened the front shocks on the skis as far as it would allow and I loosened the rear spring almost to the second last allowable setting. Doesn't seem to stiffen the steering enough to stop the wandering. Any ideas would be appreciated.