tyreguy,
Not sure what surface you are running on, however for bitumen, concrete I use the following.
TRF front
internal spacer
3 hole piston
TRF short yellow spring
50 wt oil
TRF rear
internal spacer
3 hole piston
TRF short yellow spring
40 wt oil oil
I also run thick swaybars front and rear. Ride height of 3/4mm front and 6mm rear. If front is to low then take up to 5mm. I also run approx 0.5 to 1 degree toe out and use Ride 3030 front tyres with a green insert and Pit Shimtzu rears with soft foam insert. Spice 32's work on the rear as well with foam insert.
Everyone seems to have a different setup for their mini's.
A great place to start with setup assistance is
www.rc-mini.net/
Hope this helps.
Regards
Calvin.