Thanks for looking up the post and linking to it here. Honestly, I found that topic after I posted mine, so I have a bit of Newbie embarrassment!
I put this up post because I was encouraged by others in this forum to get in contact with my local SAR folks. I found them on Facebook and found that they have successfully used GMRS to assist in at least one rescue, and perhaps others as well. I would think that is good news, even with some of the faults of a 307 system.
I’m traveling at the moment, but when I get home I was thinking about directly contacting the local sheriff’s office or SAR group to make sure that my equipment is properly set up and get some assurance that I’m properly prepared to spend time in the back country.
My neighbor and his wife spent a night get in the cold last winter and he told us he was not properly prepared to communicate with SAR. Luckily the snow mobile rental company sent help when they were late coming back and there are some very talented rescuers nearby. I think he would have liked a flawed solution now rather than a perfect solution later.
Thanks for taking the time to respond. I respect your experience and help.