Gary, thank you indeed for that very informative response to this interesting thread.
I think I understand what you are saying.
Please don't take this personally, but if i were to follow that procedure each time i wished to do some imaging, I would abandon Astronomy and give all my stuff away, and take up stamp collecting.
Although I do my work in a strange way, i am enjoying myself, and having fun, so to speak, and i feel that is what it is all about.
I do not wish to be the top astro photographer in this field, but simply do what i do, and hang the occasional image one my wall, although not perfect.
I would not be enjoying the experience if i were to do what you suggested each time i went out side.
But thank you Gary, at my age i doubt if i would ever get to that level of expertise before i die, but one never knows.
Cheers Leon