Hi PLM,
Always the weirdo, I tried a harness type (Zeiss version) but gave it away and went back to the old fashioned (probably 1800's technology?) shoulder strap style.
Not for nostalgia but, because I did not like the way said harness encouraged my shirt to bunch upward into my armpits, repeatedly during long walk hunting days.
Likewise, it seemed to "fight back" when I was trying to look through my binos for extended periods.
I know it is my fault but now and then I managed to bump my rifle with my binos when wearing the harness.
Conversely, this does not seem to happen when I carry binoculars on an old fashioned over the shoulder strap.
My shoulder strap came with my binos and it works perfectly for my needs.
Cheers,
Velo Dog.