I'VE HAD THEM ALL AND DOVE THEM ALL, AND TO THIS DAY STILL THE FASTEST AND MOST POWERFULL RECREATIONAL SCOOTER EVER MADE WAS THE ORIGINAL FARALLON VARIABLE SPEED MK 6. A 4 HOUR BURN TIME AND 70 LBS OF THRUST WITH A 3.8 MILE RANGE AN AWSOME MACHINES IF YOU CAN FIND ONE. THIS IS A RIDE ON TOP DPV NOT A TOW BEHIND WHICH MOST TECK DIVERS SEEMS TO PREFURE THESE DAYS.