For the track, you need to lose the xx/xx mentality and find the gearing that allows you to just hit redline in 6th gear on the fastest part of the circuit. Since the Blade's gearbox isn't exactly 'adjustable' at the track, this technique usually gives you the best drive throughout the track, while utilizing all of the resources of your bike. On a short track, that might mean 15/50 and at Daytona or Road America, it might mean 16/42. On some VERY short tracks, you may find it best to go with something more conventional (say 15/46) and just run the bike as a 5 speed. This has proven to be the best overall guide for gearing, as the lower gearing usually affords the rider better drive off of the slower corners, yet allows the bike to attain it's highest speed on the straights.