Finally a long clear night to get some testing done. Earlier I was having some trouble with streaky stars at modest exposure times: http://forum.diffractionlimited.com...-pec-something-else-entirely.3283/#post-18486 . Suggestions here helped guide me to the following actions: -Further secured cables as best as possible, there was a little play that could have been affecting things -Replaced GTOCP2 box with GTOCP3 box -Used PEMPro for polar alignment and PEM correction (GTOCP2 box wouldn't work with out-of-the-box playback, GTOCP3 was easy upload) -PEMPro suggested correction worked well (I believe *most* of the error was in the PE since the graphs looked similar between the GTOCP2/3 boxes). I think the autofocuser might have been off a little but I took multiple exposure including 2 5min exposure of m14 and a 10 minute (last digit of filename). The stars in all images seem round to me (there is no autoguiding). Would anyone mind spot checking the quality of these images? I think the small differences between the two 5 min exposure are not systematic errors in the scope setup. Next step will be getting the guiding working, a lot more hope now; but let me know if any obvious problems jump out to you with the images.