i have a non turbo aquatrak and can easily obtain 63mph; ru using hi test grade?I am looking at purchasing another Honda Aquatrax. I bought a 2006 F12 last august and love it. We also have a 94 Yamaha VXR which has been bullet proof. Previously had a Yamaha waveventure 1100, which the F12 has replaced. I realy have liked having a sportier and family type pwc. Am looking for something to jump wakes in a fresh water lake. I have found a new 2005 R12 for $4999, R12X $5695, 2006 F12X for $5999. All of the above are OTD with out trailer. I am a little concerned about the Turbo models because there seems to be a fair amount of people who have problems with the turbo models. Any thoughts or recomendations?