Wingard batwings and holes in the roof
I have read elsewhere in other threads about the possibility of the subject antennas vibrating and possibly causing roof damage.
We were at an RV show in Fort Worth last weekend, and saw many MHs and TTs with the batwings installed. I noticed that on some of these, there was a rubber strip mounted on the underside of the "wingtip", which appeared to me to be a preventative solution to the roof damage problem.
I'm wondering: are such strips now a standard feature of the batwing antenna? Or are they aftermarket add-ons for those antennas? If so, who carries them, and how are they installed (without changing the electrical characteristics of the antenna)?
Anybody got any additional info on this subject?