Here's my setup from Sunday's race. Because of the low traction, I used a spool up front (left over from the Reedy Race) so I can have brakes for emergency (the track was kinda tight too):
Alex Racing Barracuda R2 w/Xenon chassis conversion:
40wt Oil, 2 hole piston (Yokomo) I'm running Yokomo YS-1SS-6 Super low friction shocks.
1 hole in on the upper shock mount position, and the outter most hole on the arm. Yokomo YS-1355 blue springs
1 degree of camber, 0 toe-in/out, 4.5mm ride height. Also, I have a 0.8mm thick shim (from the A6511 shim kit) underneath the front arm rear mount for reverse kick-up to help the car turn in more aggresively with the spool.
40wt Oil, 2 hole piston (again, yokomo components).
1 hole in on the upper shock mount position, and the outter most hole on the arm. Yokomo YS-14575 Pink springs
1 degree of camber, 3 deg. toe-in (with A6113 rear hub carriers), 5mm ride height.
Motor: Reedy TI 10x2 geared at 72/21 powered by Fukuyama Batteries (Dan, thanks for the great cells!
This was a nice balanced setup for the spool, it had great turn in with the reverse kick-up shim, and very stable under braking in a rather dusty condition that we had on Sunday. This setup would probably work well with a diff up front if you remove the shims on the front (shims might make it too aggressive turning in with a diff)
One-way up front would require a completely different setup all around