im going to let the cat out of the bag a little bit but it will help explain: here is the scenario, this track is VERY bumpy and loose but probably the best conditions for testing shocks what you see here is my Caster 4w buggy with two stage pistons
Front 45wt 6hole 1.1mm comp 6hole 1.2mm rebound
Rear 20wt 8hole 1.1mm comp 10hole 1.1mm rebound
i already knew the rear oil was too light but 30wt was too heavy,but all i had at the time and the rebound was too quick (needs to be 1mm)
Battery was really low hence casing the triples! even though the rear was light it was very controllable and i was able to almost match my quick time, things to notice are how well it transitions between turns and how it jumps easily (so much that i have to adjust my driving). on the turn leading onto the main straight notice how tight i am able to make that turn with control!
http://www.youtube.com/user/Mantisworx?feature=mhum

here is my hyperSC (know for not jumping very well)
i have not played with the comp/rebound at all this is just the first time on the track with BB and 2 stage
FRT 6hole 50wt 1.1mm comp 6hole 1.3mm rebound
REAR 6hole 45wt 1.1mm comp 6 hole 1.3mm rebound
although i was able to SMASH the track record just like you see here, there is room for improvement, the front is too soft (probably go 1mm comp/rebound) and the rear is just a touch hard with not enough rebound (will go 8 hole all the way around)
things to note are the handling of the rough sections and jumping
and battery was also around 7.5v
http://www.youtube.com/user/Mantiswo.../4/wwvVw3rHa44
Still lots of testing to do on the pistons before they go up for sale but currently i have them on a few SC104X4' and couple of RC8's and the results have been the same: better jumping,quicker turning and the ability to accelerate quicker through the rough stuff!