If I understand snowmobile suspension correctly, the more ski (center spring / ski spring) pressure, relatively speaking, the more a sled will tend to dart while trail riding. If this is true, how does one go about setting up the stock suspension to be soft and compliant for the family ride yet track nice while on the flat hard pack trails? For reference I'm the only fat one in the family, the wife and kids are 115 lbs to 150 lbs and will be riding 2-Sabercats and 1-Crossfire std. I have the rear pre-loads set to soft and the coupler blocks on 2 or 3. What are your thoughts?