Been having bad darting issues with the new Bergstrom carbides I bought, one suggestion was to loosen the front limiter strap to take ski pressure off of ski's, that was after I've been loosening ski shock spring tension with hardly any results. I have 2 2004 polaris's the Frontier Classic's, Looking at the setup there's no way you can loosen the strap, only 2 holes, normal or aggressive with the aggressive putting more ski pressure. Strap starts at point A, loops around frame shaft then ends at point A, also has a bolt with nut securing the strap around the frame shaft at the top. Thought - no brainer just move strap hole up one notch, secure at point A with bolt then put another bolt where the 2 holes lign up and forget the bolt setup at top of frame shaft. Well no can do cuz if you omit the bolt at top of frame shaft the limiter rubs on the sprocket of the drive axel. I've been really trying to make this work but to dangerous at high speeds with the sleds darting back and forth hopping out of 1 rut just to get in another. Friend of mine said it's cuz we went from dual carbides "which the sled had on from factory" to single's, I'm starting to belive him, right now the spring preload tension is 1 thread from bottom of shock, made it a little better but still darts like crazy, going back up "Hayward" in a couple of weeks if I don't get a pair of dooly's to change into I'm gonna first try taking out the ski shim then the ski savers and see what happens.