Mark,
I think you'll find Harry's videos extremely useful and an excellent start. While I think the processing outlines will be helpful you will develop your own routines in time. Depending on the object and equipment used, FSQ vs RC, some routines may be needed on one that isn't on the other. One thing I see used a lot is noise reduction and suggest that it may not be needed depending on the amount of good data available to be used. If you only have say four 15 minute frames of red, green, and blue for your RGB image then likely it will be a bit noisy. On the other hand if you have 15-20 frames each you will find it much less noisy and likely not needing any reduction and able to process more aggressively.
One thing I have done since the beginning and continue to do today is name my images so I can see what I've done along the way. When I run a process on an image I save accordingly such as M57_101110_rgb_c_dbe_bn_cc_ms9.fit which tells me that I've got an rgb image that has been combined with 10 red, 11 green, and 10 blue images, cropped to eliminate the edges (dithered images), dbe has been applied, the background has been neutralized, color correction is applied, and I applied a masked stretch with a setting of 0.09 for the target background always with a preview of the starless background used for the background reference.
The point is during any image processing of any image I can go back see what was done and when. I can backup and choose anywhere along the line and change direction should I want. For that matter I may learn a new process skill such as using Local Histogram Equalization that I want to try after doing HDRMultiscaleTransform to bring back some brilliance into the image because it now look a bit flat , another one of Harry's Videos.
Depending on how you image you may want to align all your like binned images at one time. When I use the FSQ they are all binned 1x1 so why not align them all in the beginning. Now when you make your master color channels they are already aligned. When I use the RC color is usually binned 2x2 and luminance 1x1 so all color is aligned and save at the same time and then the luminance. When the LRGB image is made I use Dynamic Align to align the rgb with the luminance. I use the luminance as the reference image and the rgb as the 2nd image. This scales the rgb image up to the luminance image.
Anyway, that's just something additional to chew on. PI is a great program and always getting better. Much to learn but a good deal of help is just for the asking on this forum.
Steve