hey guys,

trying to return to racing after a multi year hiatus, with these gt3 spec classes.

built a tt-02s for me and a tt-o2r for my son. couple of noob questions.

1. what o-rings do you guys run in the TRF shocks, I put the 419 shocks on the tto2s, and the 42102's on the R. What I thought building a smooth shock and getting the air out, only to realize the leak like crazy and I have to rebuild. my bad! do I stick with the TRF blue- o ring, or any other better?

2. with these trf shocks and the ball stud mounted, you get them on, but now, what's the easiest way to get on and off the car without tearing up the shock? does anyone use a shock collar and screw?

3. Tamiya parts seem like a pain in the butt to order or find in stock at a reasonable time frame. not wanting to wait 2-3weeks for tires, or body or steering knuckle and flange. as much as I support local with all my hobby needs, is there a US online retailer that stocks or supports these parts? I only know of amain and tower, I try to avoid to support local.

what started as a cheap car and class, has me consumed with Tamiya blue and almost the cost of a normal touring car. that's my own addiction issues.