My friend has a 2000, 600 Touring (Polaris). I would like to help him with his handling problem. DARTING. On the groomred trails at cruising speed the sled darts from side to side giving him a very uncomfortable feeling. Does any one know the cure, first hand experience. This is not the first time that I have heard of this problem with this model. Lengthening the limiter strap did not help. The strap is not tight when the sled is on the shop floor with no rider. All response welcome. Thanks,............Mike !