As I am a couple of days from heading on a holiday to Vietnam and Cambodia I am going to be out of the imaging game for a bit so I figured I should try to get what I can out of this limited M16 dataset.
Decided to create a synthetic luminance by combining the three subs together and forgetting about rejection. It may remove the hot pixels BUT it also removes a lot of the faint stuff, creating a rejection from the not overly abundant SII data with the Ha rich areas doesn't go down too well
With a bit of playing around I managed to fix the hardness of a lot of the stars, in doing so reducing some of the magenta in the brighter stars. Much happier with this result over the original.
Tried dragging up the fainter incredibly noisy areas without flattening it too much, quite happy with the result. Very disrespectful of the light, so sue me

That is what the original image is for.
The stars in the top left corner look worse than over the rest of the image, not sure what's going on up there in particular. None of the stars are great mind you.
Link to
High Res