LST diffs and 2-3300mah 5s packs in parraelle, ben rockin this set up for 8-9months and recently maintinanced the diffs and they're still looking great.
The LST/XXL is THE best basher IMO but the Revo does handle 10X better
Good luck with what ever you decide to do.
I retired from RC, now life is all about guns and long range shooting.