bearfootin:
I'll snap a close up tomorrow and post it. In short, Kwikee makes, for lack of a better description, a "spacer" of the same l x w x d dimensions as the fastening bracket. This is placed between the bracket and the bow and provides an extra 1/4" of clearance.
Dirty Bill:
Prior to Kwikee coming out with the Kwik-3, I formerly used the Kwik-2 (for over a decade). Your perception of the older Kwikees is accurate-they could be noisey. I was able to stop the vibration on the older models by using a rubber spacer which I cut to size from a bicycle tire tube.
The newer models are designed differently and are in fact quiet. That said, I still have to ocassionally put string wax on the threads of the screws that attached the bracket to the bow. But there is no noticeable vibration or noise associated with the new models.