I can honestly say that one of the best mods I've done to my R3 is the addition of the Scotts steering damper. IMHO the Scotts damper is far superior to conventional dampers. As I explore higher and higher top speeds, it's just a simple click to increase the damping on my steering. The effect is like having power steering on the bike... stable, firm, precise. Highly recommended!
Scotts does not make a mounting kit for the R3. I modified the Triumph TT600 kit to fit. The TT600 has the same size steering stem lock nut as R3... that's the key.