Thanks for all the input!

I am running the stock radio. I have read that is can cause problems with the servo.

What are FLM diffs? I have MIP CVDs installed. I am looking to upgrade to the gorilla maxx transmission. The investment is good batteries (IP 3800). The ones I have are pretty cheep 3000 NIHi cells. So those are the two purchases I am going to make, and the rest is replace as it breaks plan.