Does this sound right? What I understand about clutching is that you want to use as much weight as possible in the primary with the stiffest spring in order to hold RPM`S (is this correct?) On the Secondary try pulling the steepiest angle helix(that your sled will allow) while using a secondary spring with the least amount of tension,in order to go fast.(Does this sound right?) I know that a persons weight and changing track size can affect the outcome of clutching,also. bang your head Any Comments appreciated.