Wes, Thank you for all the excellent info! I think I need to do a better job at PA. I have been doing a PA with my DSLR attached to the scope, trying to PA through the display. I will try with the eyepiece to see if I get better results. I also need to do a cone alignment. Lastly, I think I am going to sell my AR102 and go with an 80mm scope to reduce weight and the focal length.