We were there several weeks ago and most of our group did use scooters, mostly to go from the harbor to Loblolly bay and it was a lot of fun. One member of our group was not comfortable riding so she cabbed over to loblolly and met us there so that's an option if not all members of your group want to ride. If your group has some experience with either scooters or motorcyles you'll be fine (scooters we were on had automatic transmissions - no clutch). However, the roads are not the best with road work and trenches cut across the road every few miles (watch for red road markers) and a small amount of off-roading may be necessary depending on where you go. As far as mooring balls don't think you'll have a problem, but we left early from Leverick Bay, followed the line of boats going to Anegada which made navigation a non issue and got settled on a mooring ball early just to be sure.