RE: Minimum optics for Western hunt.
bb122. I got a pair of Cabela's Alaskan Guide binos in 10x42 last year. Don't have a pair of Leicas to compare them to but they are very clear and give good visibility in low light despite the relatively low brightness quotient, i.e. 4.
The Alaskan Guide series advertises "European quality at a fraction of the price."
I use a harness rig to attach them to so they don't pull on my neck. Simply pull them up off my chest to use. The harness is elastic.
Regards.