So I have been finalizing most of the parts for my breakout bag mounts and am looking for thoughts on how to fill in a few pieces for the mounting areas.
I use the saddlebag supports found on the 14+ rushmore models as the bags are made to connect right into them at the following link:

http://partsfinder.onlinemicrofiche....=83&c=0&d=2014 FLHTK ELECTRA GLIDE ULTRA LIMITED [KE] SADDLEBAG - GUARDS

Since these brackets are technically made to connect up to the frame of a bagger, there are gaps to where I mount them on my tourpak rack. To fill in the gaps and stabilize it, I took some rubber flooring, cut them to the right size, then use them inside where it flushes up against the mounting area of my tourpak platform. This works and while you can't see it, I do want something that is a more appropriate fit.

My first thought is to line the inside of the bracket with some form of plastic or use some non-leaking tape to line the insides of the bracket and create something of a mold to fill in some liquid rubber that could harden and be a more permanent gap filler.

Another thought would be to take the currently cut rubber pieces, dip them into something that would coat the outside, let it harden and minimize the extra work.

Any thoughts on this and a good way to go about it?