[EricH]

Originally Posted by Design006

Another solid question came up too about adding an adhesive wax to the cloth of the bumpers. Thoughts?

I would say NO. There are a couple of ways I could do this; the most obvious is that bumpers are to be constructed per R21 (including images), which does NOT say anything about modifying the fabric. I could also try to invoke R17, which specifically refers to lubricants not contaminating the field/other robots, but that would depend on the exact purpose of the wax. (Note that in such a case, I'd feel a lot safer if someone had asked Q&A about it and been turned down.)

On the other hand, the only restriction on the cloth is that it be both rugged and smooth. If you found cloth that was rugged, smooth, and somewhat sticky or slippery to boot, I don't think I'd have any problem passing your bumpers.