OK ill post up my setup that worked pretty darn well at the local big race last weekend. M03R kit.

Front -
Tires - S grip Radials
Insert - Hard tamiya foam - no double stuffing
Tire Sauce - Niftech - Inside first line of radial blocks, no more
Ride - level lower arms or go higher, try the feel
Springs - Blue short springs
Shocks - TRF Mini shocks, setup as instructed for the M03
Toe - dead ahead at ride level
Ball diff - TA03 tight as i could get it (still a little diff action)
Camber - Fixed Links

Rear -
Tires - Type A slicks
Insert - Hard tamiya foam - no double stuffing
Tire Sauce - Niftech - Full
Ride - as low as you can go before dragging.
Springs - Red short springs
Shocks - TRF Mini shocks, setup as instructed for the M03 (double check you have MINIMAL droop)
Toe - M03r rear uprights - 1.5 deg
Camber - roughly 1.5 deg at ride level

Other mods, i placed a TONNE of lead in the bottom of the rear compartment, not all the way to the back tho, and a big strip across the underside of the lipo, full width. electronics were placed ontop. My car was one of the heaviest. I could still traction roll if pushing way too hard, but it was FAST. I ran no sway bars, didnt touch the car at all during the entire weekend, i just tried a little more sauce on the front, and it started to traction roll more, so kept it to the first inside line of radial blocks. It was a little rocket, and it held TQ most of the weekend, even with my rusty driving. If i wasnt super rusty and shaking in the final, i think it would of done very very well. Started 2nd, and was 7th by the first corner, but caught back up to have an epic battle with 2nd place, ended up 3rd overall.

This was on medium grip carpet. I would have glued the sidewalls if the grip had of come up alot (if you have alot of foam cars at your race), but the current setup about was perfect. With a little more practice, i think we would have won it.