[Dandare]

Hi Chris & welcome.

I'd say 7.5, possibly 8.5 turn are most popular. You could run 10.5 on our grass track without any timing/boost & it'd be fine as it's not so much a 'fast' track.

I can't speak for others but I'd guess most of us run ESC's in 'blinky' especially with the lower turn motors anyway. I've never run any timing/boost with a 7.5...

Two lipos would be ideal, if nothing else it removes the stress of getting your one & only battery charged before the next race. Having said that a high capacity battery (5000+Mah) wouldn't be so bad if it's just club racing.

Dan.