Rode today and last weekend. I added weights to the primary and it is better but a softer spring is next. The stock setup had the sled hitting 6000 rpm when holding 20 kph. This high rev, for this speed is causing the un-necessary vibration and I think the belt problems as I don't believe the clutch grabs the belt tight enough and lets it slip to create heat. No dead belts yet for me. In addition the chassis is very rigid and this transmits vibs and shock to the rider. I am considering some Simmons Flex ski's as they completely improved the ride of my 03. It used to dart and wore out your arms before the day was done, now my 12 year old can handle it all day. My new XP does take more effort than expected to steer. Maybe a bit more adjustment will be all it needs?