Thanks Guys.
Mike, yes you raise an interesting point there, the colour gradient on the unprocessed RGB stack doesnt have anything like ive seen posted, including your examples, very subtle indeed. Everyone pushes it, it looks a tad drab if you dont, so I did too, to give it some life. I dont pretend to be uber accurate in my images, just make pretty pics

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Alex I was stunned at that "DSI" pick, took a while to realise the cam used the same chip as the DSI (I think, is that what you mean?). A very good shot, puts mine to shame

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Ric. They detail is very subdued on M81, as Mike says, was hard to get what I did, others have bought it right out, I dont know how, perhaps seeing wasnt that good on mine.
Rob, yes that gradient at the bottom is a puzzle (its not pollution or stray light), it was already partly croped. The flats were old, that might have done it. Ive lost Rob Gendlers plug in, need to get that again.