This is the Father of Justin Landis selling these. He was 1fastXP(something close to that) on the forums. Tragically he was taken last year in a motorcycle accident before he was able to build these. He did build some great X4's though. Anyone ever see youtubes like 63MPH 96XP or Group K 64.8 matched and beaten(?), stuff like that.
The hulls are carbon fiber. Dustin Farthing won the world finals in 98 on a hull that looked just like that one. That was the year he used the "Jake Brake" that was made illegal afterwords. A lever on left hand would not only drop the nozzle and the cable operated trim tabs but a piece would slide down lower than the hull. This allowed him to run WOT right up to the turn without having to slow down sooner for the turn like everyone else. The IJSBA does not like things that could snag a fallen rider.