With <1 year's experience and a 10" f4.7 scope, I'm saving for an Obsession but have a question regarding higher magnification. In my scope, 240X @ 1.1 exit pupil is often useful but 400X @ 0.6 exit pupil almost never is. I read that seeing conditions determine magnitude limits, period. The new scope I'm considering will give 345X @ 1.1 exit pupil and 576X @ 0.7 exit pupil from the same EP's as above. If seeing is the dominant limiting factor, rather than exit pupil, over usable magnification then the value of a new scope seems diminished since seeing at a given session remains constant between scopes. Can this assembly help clarify the matter, please? Thanks for your input.