I do all my hunting in Montana, main focus is archery elk/deer but I hunt all seasons. I have diamondback binos and Sx-2 leupold spotter.
If you're looking for really top glass, it'd be hard to beat one of the Swaro NL Pure options.
In general, a lot of guys start having problems hand-holding binos for any length of time when they get above 10x - what's not commonly known is that a lot of that comes not so much from the image being "shaky", but from that
combined with a narrower field of view. And especially with cheaper glass, this is made worse with a shallower "depth of field", which is essentially the near-to-far window of what you can see without making a focus-knob adjustment. A really shallow depth of field causes your eyes to work a lot harder to focus on things at the edges of that depth-of-field, generally without you even realizing they're doing it.
All of this combined is what makes the NL Pures really stand out - they've got a much larger field of view, and an excellent depth-of-field. Combined, they generally allow you to go up 2x in magnification while hand-holding unsupported, without too much shakiness or eye-strain.
As someone mentioned above, with the right selection you could get rid of the Diamondbacks. I personally find myself using a spotter less and less for general glassing, and more for just double-checking something I think I'm picking up in my tripod-mounted binos. But a lot will be terrain dependent. But I'd look closely at either the 12x42 NLs (especially if you expect to be using them one-handed a lot on a stalk, for example), or the 14x52 NLs if you want to put a lot of time in behind a tripod. Hard to go wrong either way, it's more a matter of the predominance of expected use.
