All, I bit the bullet (after losing out on a 350+ bull two years ago) and purchased a pair of the tetra hearing aides. I purchased the pair that don't act as a suppressor but amplify the sound. According to the web site they are designed for the elk hunt, as opposed to the turkey hunt pair. They do come with a 30 day money back guarantee and I won't hesitate to use that as they came in at $900. So far the fit is good and the sound is interesting if not very good. I will know more starting September 7th when I go in for Montana elk. At 65 with some crappy hearing loss from stupid stuff done when I was younger I just don't want to be surprised at not hearing an elk in the distance. Bad enough those giant things are like ghosts for visibility but to not hear them is just asking for a screw up. I will post a follow up in October when I get back..