I think by extracting the HA channel then re-adding it via the red channel then adding a separate luminosity layer the image really comes out, love the smaller stars and the overall nebulosity without that red cast.
By using Astropixel processor and stacking just the 180 second images using the HA oII debayer then adding the HA separately this is the result.
It's convoluted to explain but in reality it works very well.
