Thanks for all the replies to my noob TRF419XR owner questions. I promise that I am searching prior to asking.

Here is one more... I will be using the aluminum chassis (black carpet) without the center ballast weight - it didn't come with it and I can't find any for sale. My question is, how do I prevent the rear of my Lipo from moving laterally and rubbing against the pinion. Because of all the holes on the aluminum chassis, I can't use 54694 Rubber Anti-Slip Sheet. Is the strapping tape enough to prevent any movement?