Hi Eric,
Thats coma alright, and having a f/4 you will have plenty of it. I will be getting a Baader MPCC for mine in the future and it would be perfect for your f/4... Also there is some collimation error as well as the coma centre seems more to the left of centre in your image?..Do you rack the focuser in and out when you check it with the laser so that all is dead square on? I didn`t to start with and had similar pics until I got all perfectly centred racked in and right out!!
Hope you sort it out soon!!
Cheers Gary
