Kurt, as usual you are a wealth of pertinent information, thank you! I suspected that the mounts were both manufactured at a common factory, as is most every branded item at the same price point these days. At present, it's hard to say what the most common optical payload the mount will be carrying will be, as I have such a huge assortment of small telescopes (small being anything below 10" aperture). I'm sure I'll try most everything I have sooner or later, after I learn how to use the mount. My imaging goals for the mount revolve around my 80mm and 100mm ED refractors and up to perhaps a 6" specialized reflector or aerial camera lens shooting monochrome narrowband frames- the color correction of the aerial lens would then be of no concern. I greatly appreciate the offer to borrow your Atlas, but just a couple of hours of the two of us using it at SPOC one night would suffice to answer my questions, I'm sure. Are you still using the 127mm refractor on it?