I dont have USDs on my bike, but I do have 900rr forks and to be honest, they are way too feckin stiff. Even with the stock rates and the preload pulled all the way out. Also with the bigger brakes you can really feel the weight difference.
Jeff, i may be interested in your forks if i cant figure a cheap way to soften these up.
_________________
MC21 300R w/SE bits, Rossi 2001
MC28SE Silhouette Repsol