I dont have a lot of experience with high end streetbike suspension, but going to a Penske shock on my sv 650 made a difference that was tough to believe. It was THAT good. I was quoted 788.00 for a Penske shock (double) for my c14 but have not bought it yet.
One feature it has is adjustable length. The ability to add or subtract a few mm from shock length, without changing preload, is a great feature to have. You can really fine tune the handling of the bike by using this. I'm sure Ohlins has this as well.