Thanks to Jeremy at Speedwerks a buddy and I had the opportunity to ride a supercharged pro in Towgatee for the day. I will say, without a doubt, that it exceeded our expectations. Without a doubt it was the funnest sled I have rode to date. It was a pump gas kit running around 7.5-8 lbs of boost. They also had a cat sc and a guy had a turboed cat. They were all running the same boost and all had 3 inch tracks. About as fair of a comparison as you are going to get. The pro had a vipec. With Jeremy running the pro, He never lost a race. It wasn't a huge hill but was an uphill race and a good indication on how they run. Whether a turbo will win out on a long steep pull I don't know. All I know is the supercharger is in the mix and I won't buy a turbo again. They pull your arms off from the minute it engages. The weird part is they are kind of deceiving on how good they run. If you like to play in the trees, or jump, or climb chutes this is the sled. Instant hit or pop off stuff, no lag what so ever. It is like a big bore on steroids. The turboes don't really have lag anymore but are still spooling a little before you get full power. The supercharger has incredible bottom end and still seemed good up top. Hitting a little uphill lip, that didn't amount to much, and the super charger would catch 4-5 feet of air and the turbo just wheelied over. This is a boondockers dream. Even though the kit is still a proto type it was super clean. It will add about 7-10 pounds. The cool thing is the weight is centered up and you don't notice the weight. When I was running a turboed pro, and you jumped on a stock one, you could notice the extra weight when not on the gas. Mcclure won the dash for cash on a race gas version, at Jackson, I believe running 14 pounds so this should rule out gus saying they don't run at higher boost levels. Thanks again Jeremy and Bill. Terry.