@clutch, your oil is too light. You have no pack the oil moves through, and likely around the stock 3x1.3 hole pistons, causing you to bottom out and slap on jumps. And yes, the kit pistons are junk. Buy the Schelle 2x1.6's for the front and the 2x1.7's for the rear. Or even the Schelle/Avid 1.5+1.1's and 1.6+1.1's, but they come in packs of 4. Try running 400cst (AE 32.5-35wt) in the rear and 550cst (AE42.5-45wt) in the front. One dot rear spring, 2 dot front. The handling is still there, but better landings.