RE: LOSI XXL (Roller). Did I get a good DEAL?
The stock servo arms are for JR servos, so have a different teeth-count than Hitec servos.. I'm pretty sure you need special servo-arms for the LST2/XXL set-up - i.e. it's not just a question of putting on a standard Hitec servo arm...
But anyway, I think going with stock servos for bashing is just fine.. Just pick up a third for backup...