It's a proprietary backing plate, not like any of the standard plates. Not to say someone couldn't make one but it's not like anything I've ever seen before.
Out of all these have you seen anything bead or repel water better then PNS?? I'm not seeing anything do better especially if you topped with BSD to prolong it.
I've done it in San Antonio, get off the phone and go in person so you have a face to reference and proof you spoke to someone in case things go south.
You need to do your research and consult the local business that you may be in front of, some have responsibilities to the street and some don't. If they don't you have to speak to the city office...
U know I now live in Japan and can't find fusso coat anywhere and have to order it online to get it but when I did, it didn't last very long here in Japan. I got maybe 6 weeks out of it.
So I agree, you set the expectation you have set for yourself no that of what the customer wanted it that you explained to them. A 1 step is just that, you do it and your done. All to often I see...