This HA image is about 1 hour data, 5min sub, auto calibrated within Maxim. I managed to get PixInsight to align and imageintergration and Histogram Transformation. Thats all I know, other functions are too much for a novice. There is serious blooming issue that I dont know how to fix, not sure if PI can? or better to reduce exposure time?
That's a really good start David. You've got some awesome gear. What you're after is called deblooming. CCD Stack does it, MAXIM DL too I believe. The flares are rejected at stacking time.