i somewhat new to RC's but I have a question? How were what size spur gear should I use for low and acceleration
Welcome to the forum. The largest spur that is available is a 55T. I assume you want low speed and good acceleration.
Nobody is born with experience
More for like creeping up on jumps and gunning it to get some air
If is clean your not having fun.
These have enough power to do that without changing anything... lol
Finger control will get you what you want.
Whatever it is I just typed... could be wrong.