well i got the perches at the bottom of the collar (3 and a quarter inches, aka slammed) and mine bounces less now that it did with the progress springs (which bounced none at all) and im still on the OEM shocks, so i guess it depends on which spring the CO manufacturer uses. but if you get the maxspeeds they wont bounce. (mine did bounce on the first bump i hit, but when i hit it on the way home and every bump since then, no bounce) http://www.geocities.com/blue2gnt
