I got the impression that Peter wasn't overly impressed with stock kawasaki suspensions. Or anything else kawasaki, for that matter
I asked him about swapping a 636 shock onto my 98 zx6r and was told that it wouldn't be worth the trouble. So I bought an ohlins shock instead.
I'd give you a review of it, unfortunately it's rained every damn day since I finished installing the thing. But it looks very cool, oh yeah.
Also, hydraulic preload adjustment rox0rs my b0x0rs. My spanner wrench has become a doorstop; it makes a sucky doorstop but then again it made a sucky suspension adjustment tool so this is to be expected.