Every time i ride it i have to change, repair or try something new in the setup. It's not turn key or a proven package yet (or even readily available).
The extra motor weight, torque and horsepower create so many new problems that were never issues with the 62t motor. I'm going for near perfection on my setup and am still a bit away. I don't like the weight 800 motor or the weight of the heavy 148mm pump and the ill handling effects it creates because of the length and size of the bigger pump. I don't like not having a waterbox, and I don't like total loss and water injection. Most importantly I really don't like running $8 gallon fuel. But im working on those issues right now and will eventually get them fiqured out. I still plan of putting in a 144mag, new cylinder combo (pump gas friendly), having a waterbox fabricated, adding a lightweight crank shaft and milling excess weight off my motor . Even with the above gripes its still kills anything I've ridden and I'm already so spoiled I won't ride my other ski. My wamiltons hull with a team scream 5mm feels heavy and performs like a stock 550 in comparison. Probably my favorite thing about this motor is the "tear your face off" torque not available from any 62t motor combo. I'm not saying this is the best freestyle motor ever, and its not for everybody. but it's my favorite ski and the best performing ski i"ve ever ridden.
Its so much work to build and maintain this, I suggest you have a backup ski. I've got 4 years into my setup.
Short video of 3rd ride
http://www.yousendit.com/transfer.php?action=download&ufid=45BF7CFE3B1B672E