I did retain the rubber dampeners from the stock clamps and used them to attach the new risers.  There is really very little vibration left.

Those could be pretty nice.  Mine use the stock vibration dampeners at the bottom of the risers on both sides of the triple-tree's plate.  You can basically look at your stock clamps because those are what I used.  I did have to enlarge the holes in the metal housings of the dampeners to accommodate the 1/2" riser bolts.