Ever since I adopted astronomy as a hobby, I discovered that you can never go wrong with ADM products. Over the years I have purchased many items and the most recent one was this 18 inch dovetail bar for a SBS setup. It is superbly constructed as expected and allows me to mount a D saddle at one end and a DUP on the other. One aspect of transactions with Anthony Davoli is the ease of communication and he has helped me figure out solutions for various configurations and one cannot place a value on such service.
