I managed to grab even more data using the RASA V2 and ASI 2600 MC pro camera. I carried on with the 30 second subs for the second batch. I have a total of 1350 images giving just over 9 hours of data.
I've been able to lift the background and get a deeper blue saturation however its getting harder to keep the stars nice. I had a choice to either leave the stars a bit softer or say well- lets go for the spikey look from the diffraction relections- so being lazy and not masking I was able to enhance everything.
As always let me know what you think- I've never seen M45 having 9 hours of RASA data-however my sky conditions are not that dark.
Clear skies to you all.