Stephen having had 10x50 & 7x50 the 10 power I found difficult to handhold still to observe fine detail.
I normally say 7x for dk skies &10x for light pollution (where you don't get the benefit of large exit pupil)
The 10 power I tout did show slightly more detail on dso's.
R u at redesdale? I could pop out with my 7x50 Fuji for you to try if u like
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