Wow! Thanks for the quick responses!
I am using a Phillips 880 flashed to 900. It is unmodded. The scope is a C9.25 SCT. No barlow or focal reducer (so focal length is 2350mm). I only roughly polar aligned (since it was a trial attempt), but it couldn't have been too bad since the two star alignment and calibration stars were close.
Conditions were ok, but the moon was near full so lunar contrast was minimal and, hence, focus wasn't the easiest. The moon was well up (since I have trees to the east).
I roughly followed the examples on the Registax site
http://www.astronomie.be/registax/pr...singlerun.html