Hey all I own a traxxas 1/10 Ford fiesta rally, I'm running the venellion combo with a center diff and a few other upgrades. I got into this hobby in December so please keep that in mind, my question is this. If I am wanting to do more gymkhana style drifting and driving, on road and off, do I need a bigger (more teeth) spur and smaller (less teeth) pinion? The reason I ask is for everything I've read I'm still extremely fuzzy on the spur, pinion thing. Also can anyone translate pitch in regards to what it does for the car? I've read several different comments that say it doesn't matter about Spur and pinon as long as you have the correct pitch?