Despite the fact that I think my collimation issues described
here seem to be sorted as far as I can tell I am interested in
this adaptor simply because it seems to make sense. Does anybody use one and if so what are your impressions as to whether it aids collimation by centering the collimater perfectly every time (not my words!) and making sure your eyepiece is also centered correctly in the light path every time eliminating the supposed difference in positioning the thumbscrews can introduce. Bloody hell that sounds like an ad for it!