Well Bill, I know you've installed hundreds of them and Dicor may be okay for a rubber roof, but the OP has a fiberglass roof. I would be pretty upset if you installed anything on my roof where Dicor was used UNDER the product. It can become soupy in very hot weather. To each his own.
I value the information you often provide regarding how satellites work and how to operate them, but it doesn't necessarily make your method of mounting them correct. Hundreds or thousands of incorrect installs does not make someone an expert. I suspect using one product in your shop vs having a variety of appropriate products is cost effective.