Now that I have been able to use my obsy with the permanently mounted telescope, I was able on my second outing to grab enough subs of the Cigar Galaxy to process into an LRGB image.As I was using my Astro-Tech 8″ Ritchey Chretien telescope with the Astro-Physics CCDT67 telecompressor working at 0.53X to make the focal length ~ 860mm and aperture F4.3. The ZWO ASI178MM-Cooled was imaging at Gain 200 with 3 minute subs for the Luminance, R, G & B images. I used the Astronomik CLS-CCD for the luminance images, and the Astronomik Deep Sky RGB filters, as these are supposed to work well together. In total I captured 12 frames of R, G and B images each, and 16 frames of Luminance. Total integration time was 2 hrs 36 minutes.
Image calibration, integration and processing was done using Pixinsight.
Now the stars are not completely round, as the seeing was not very good which did impact on the sub-pixel autoguiding using PHD2, and I was still working out the best settings for autoguiding with the Celestron CGEM. Hence I am sure I will be able to get much better images in future, particularly when I upgrade my mount.