I run a Kuiu Pro but also have the Alaska Guide and feel that both bino harnesses are useful for different hunts. For example, the Kuiu Pro is smaller and more versatile for antelope whereas the Alaska guide is more appropriate for wet weather Alaska hunts or conditions where you don't need to run and gun as much. Both can be used for any hunt as they both have a low profile but that would-be my 2 cents
T and k and marsupial have non magnetic bino harnesses but neither have non magnetic rangefinder pouches. Kinda pointless unless you add a fhf rangefinder pouch. And not to mention everything is always sold out so even if you wanted one nothing is available