Every few years I try to capture M106 but I never seem to quite do it justice. Most of the problem is that the galaxy lies toward my most light polluted area so I can never quite get the contrast and detail I'd like. Still, I do seem to improve on it each time I try.
One thing to note is to compare last year's image, taken with a CFF250RC at an image scale of 0.62"/px, to this year's image taken with a CFF135 APO at an image scale of 0.86"/px. In general I see the same amount of detail in both images. There is the same amount of LRGB data in each image (around 20 hours). My local seeing conditions, more than the size of the scope aperture, determines in large part the quality of my images.
This image has a crazy amount of total integration time, over 36 hours in LRGBHa. Ha accounts for about 15hrs of that, taken during bright moonlight.
As always, comments and constructive criticism welcome.