Ken, David, Jim, et al; I have had exactly one evening of using my new CGEM before the storm front moved in. I plan to use it more over new moon. We shall see. It worked just fine, same as my old one. I know that Dean at Starizona looked it over, set the gear mesh distances, updated the firmward and lubed the mount. Ken, I know that you are looking for really accurate tracking to do some photometry with the 10 inch Meade. It is possible that no mount in this price range will do what you want. I know the price of CGEM Pro or Astrophysics mount. They would certainly do the job, but at probably more than you want to pay. Maybe a used version of one of those. Can you do what you want with less aperture? Maybe an 8 inch or even 6 inch could provide enough photons to allow you to get accurate measurements? I promise I am just trying to be helpful. Less aperture would allow the CGEM to work smoother. Just thinking; Steve Coe -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.