I beelive I've psoted this topic on several boards so far and actually seem baffled in teh lack of response. i think its more like the lack of product purchase. But we've been testing out the H&R coil kir front and rear and have found after a few track events and some cross country driving adding on 2500 miles to the vehicle that the rebound rates which started off firm and very comfortable for the vehicle have drastically died over the last month. The vehicle is now very soft. I'm looking for any other owners out there that have purchased this setup as well that might be able to lend some input on how their kits have faired.