Here is an image (resized heavily to fit the 200kb limit - dropbox link for a not so compressed version
https://dl.dropboxusercontent.com/u/...GC2467_6RC.JPG) taken tonight as a test after a week long collimation attempt. It is the best result I had so far, but even then once you get about 1/2 way across the field, I start getting elongated stars and by 80% away from centre the elongation becomes quite objectionable. The elongation is what I would think "balanced", if one subscribe to the "DSI" dogma. I don't know whether this is the best that the RC can do, or whether collimation requires further improvement.