Pinion for BL

[makana59]

Hey Guys,
Just got my ofna spur in the mail with the sprong.. was wondering what mod1 size pinion you recommend I get. I have a 9L BL with the 9920 controller. Which ever pinion you guys recommend can you give me a reason too. I still have the stock 2 speed on and steel idler in there. Stock Diffs too... I kinda want speed but dont want to burn the motor or controller... Well whatever you guys recommend and please give a reason too so i can make a good decision. Thanks Guys, Makana