I’m sure this has been gone over - if you’re going to carry a tripod but only binos for spotting what power would you go with? Assuming glass quality is good to excellent
It's a new-to-me setup but is recommended often...I'll be hitting the hills this fall with 10s on my chest and 15s in my pack, both with adapters for glassing off my tripod. Haven't had a chance to play with them in the field but just glassing around my neighborhood at 200-700 yards I can pick up on birds and squirrels and stuff with the 10s and really get a good look at them with the 15s. I think it will be a nice combo.
I've hunted the past several years with only the 10s and often wished I had more power. If I was only going to take a single set I'd consider 12s as a happy medium.
Carrying 10s and 12s isn’t worth the weight. If you want to glass and spot carry a pair of 10 power binoculars, and get yourself a variable power spotting scope that’s made for the job.
I opted to carry swaro 15x56 for spotters, like them better than a spotting scope. Can spend more time behind them with less fatigue. 8x in bino harness.