Yes, you are definitely on the right track by taking subs for as long as possible without saturating things, and reducing noise using dark frames. I have a science/engineering background too, and I agree with your comments about the theory. It's a starting point, but experimentation is the key.
Just one tip; don't delete any of your initial images, as you may well find that after time with experience, and/or new software, that you can significantly improve those first images.
It will be good to see more of your work over time.
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