Well I figured it out on My end and now I have a great image with no amp glow.
I messed up by using flats that were calibrated with the wrong Gain! I made another set in the house with the right gain, using the right filter, and low and behold, I have a super image with no amp glow and around 523 stars which is about right. Glad I was able to figure this out, I hope you get the same result. Bruce