Just tried the Hi Performance overload spring blocks (stock spring, overload setting) on 00 ZL5 with coupled rear susp (sled pro). Gave it a run and my first impressions are mixed. Feels great for my weight (220lbs) for mellow cruising but when I crank it up a few notches the sled suprised me. I had to ratchet up my technique to handle the new responsiveness. The sled is more responsive to my movements and less forgiving of my mistakes. Found that I had to stand up to access the suspension's full potential. Will have to experiment more with this puppy on different settings. This was the first time ever riding this sled without bottoming out in several places along my route. It was a good workout!
Mark
Mark