I have not raced my JRX-S Type R in VTA or USGT, but like I said before the 17.5 turn setup I run shouldn't be too bad. I'll see what I can remember:
Roll Center: Arms mounted on the low roll center setting, close to the chassis. Front stock links, mounted in either the upper or lower inner link position on the tower.
Alignment: 1 or 2 degrees of camber, a degree or so of toe out.
1 or 2 mm of droop from ride height.
Shocks: 35 weight fluid with Losi #56 piston, 17.5 pound spring, middle or inner hole on the shock tower.
Swaybar: Medium-Hard swaybar.
Roll-Center: Arm mounted low, like the front. Long link, outer hole on the hub, middle inner hole on the shock tower.
Alignment: 2 degrees of camber
1.5-2mm of droop from ride height.
Shocks: 30 or 35 weight with Losi 56 piston, 12.5 pound spring, inner hole on the arm and middle or inner hole on the tower.
Diff: just tight enough to not slip under power
+1 degree rear hubs for 3 degrees total rear toe-in.
I run a shorty lipo pack and mount the ESC in the battery tray behind it. I also run the steel battery tray to get the extra ballast and make weight. This makes the car very, very stiff but I never found much advantage in softening the chassis, i would rather have the flex in the suspension. Under high grip this setup I listed is very soft and may allow the side of the chassis to drag, if this happens I found that moving the swaybar ball mounts up the bar to make it harder solves most of the problem.
How good was this car? I came within two corner dots of TQ'ing and winning this race, my car is orange/yellow:
The guy who beat me was a better driver than me, I had the superior car through most of the day.
A month after that race, and the very next time I put the car on the track, I TQ'd with the Type R at TQRC in California, ran fast lap of 17.5 touring at the event, but I had some bad luck with lapped traffic in the main.
Some pictures from another thread:
Old TC Cars - Still Racing Competitively