I've been using both Adam Drake's set ups for both indoor and outdoor. For outdoor I do like the shock setup(8 hole pistons with 37.5 and 30). For indoor I tried the 5 holes pistons and 35wt oil and I'm not sure I like it. I did not like the way the buggy landed, it seems to slap the ground and bounce on flat landings.

Can someone please explain to me why Adam went with 5 hole pistons for indoor and 8 hole pistons for outdoor.