I'm very sorry to hear that. I've never met that fellow but we have traded email messages over the years and I wonder if somebody else is working with him now or whether he might be on a last of the summer vacation. I have never gotten the feeling he would cheat anybody at all. In fact, just the opposite. All those sending units are generic. Sorry if that wasn't clear. They were designed by a man in Taiwan and he made them so he could vary the resistance as needed for the application.
Somebody in Kansas City is making a made-to-fit sender for the AD tank? I didn't know that. I spent 2 years developing several different types before deciding (a) I could make the best sending unit around (b) I couldn't do it for $30. What is the name of the company?