Very cool solution to your issue ronlaughlin, ...
Unfortunately I developed Meniere's disease in 2007. It is generally not understood well, but carries with it a component of hearing loss and tinnitus. It sucks, but I believe that NOT ALL of my hearing troubles are from the disease. Even though for the past 30 years I've been very careful with my hearing protection, before age 30 I did not always use the proper protection. Now it's always puffs AND muffs, unless shooting .22, then one or the other will suffice for me, but there'll be no more hearing loss on my part due to ignorance or laziness.
I like the idea of a Walker game ear or other such device for hunting. We all generally take one shot during an outing, unless duck hunting or prairie dog hunting. And if I were to engage in repetitive shooting while hunting, I'd gear up as if I was at the range.