Sorry about that. I ran #3 pistons in the front and rear. The car don't really feel too stiff. I was looking at many of the posted setups and most ran #3 pistons. Now when I ran the Pro I ran #2 pistons but it seems with the SP most ran 3's.
I think I might run a tad lighter spring next time just to see what happens. The track was a tad rough. The next time I think I will run rubber tires is at the Regionals. I run in Pa so it is the region 2.
I have only ran the SP version for 3 weeks on asphalt with foams and 1 week with the rubber tires on asphalt. I will be experimenting some with little adjustments. I just ordered some GPM front caster blocks (5 degree) so I should have a little less turn in off power and a little more on power steering so with my foams this might help to make my car even more stable. I would also like the try the lower swaybar setup as well sometime.