I assume you'll be hunting elk or mulie, or antelope? In most cases on those animals, a guy would have time to install regular 'ol foam ears plugs in each ear before you take a shot. You could buy some that have the little strap thats holds the two ear plugs together, rap it around your neck so that there are easy to access. You won't be shooting several times, or have shot opportunities over and over, so that's what I'd recommend.
I do use the Walkers quad muffs while calling coyotes. I wear them around my neck while walking from one stand to the next. Before I start calling coyotes, I put them on, turn them on, and go from there. BUT calling coyotes is much different than hunting big game. I may put on and take off my muffs severals times in a day, and being able to hear sounds around me is much more important than when you setting up for a shot on a big game animal. It took a while for me to get used to wearing and carrying my muffs, but I've gotten to the pointnow that my muffs are almost as important as my bino's.