Here is my TQ/win setup from the ACT titles last weekend. Things I found most effective in low grip were to stand the rear shocks up to hole 3 and raise the rear blocks 0.5mm. Also agree with the comments re: bump steer - too much definitely makes the car loose on power.

I found the front diff easier to drive and it turned in a little better, but I if I wasn't TQ I would have run the spool to make passing easier.