Hey all. Just picked up (3) of the TLR 8ight 3.0 E kits for myself and a couple buddies. Not sure if this is the correct thread to ask, but as I was looking at optional parts I came across a few questions for you (the experts):

1. Is an aluminum version of the rear hub carrier available? Part #?
2. What is a 'smart' front and center diff? I didn't see a rear 'smart' diff available. How does it differ from the stock diffs in the kit?
3. Is the electric clutch a 'must have' for top lap times, or is it a just a driver's aid which serves as a launch control? If you use one, how do you brake?
4. Battery for racing recommendations? Going to be running a Mamba Monster 2 ESC with a 2200kV Neu motor. I currently have two 4S Orion Carbon Pro 6400mAh, 90C batteries--will those work well, weight-wise? Recommend 2S saddle packs?
5. Going to be using a Hitec 8370 steering servo. Overkill?
6. Any additional advice?

Appreciate any help you all can offer and Happy Holidaze.
Can't wait to hit the indoor clay next year!