Completely biased, but I've been using Stadium shocks for the past 8 years on my F1s and Fran McDermott just popped one on his TT1 (I have one for my TT1 as well). They've given me brilliant performance and excellent reliability which is why I sell 'em. They're custom-built for each customer/bike and truly give the chassis tons of feel and control.. About the same $$ as Penske with arguably better performance.
http://loudbike.blogs.com/loud_bike/2012/05/hi-performance-shocks-for-ducati-750-f1-and-ducati-tt1.htmlRegards,