I've tried several different bino harnesses including the badlands, the alaska guide creations (small version before they came out with the large size), the S4 lockdown, the crooked horn bino cover, the IPI bino manager, the Sitka Bino Bivy, and a FHF Gear (Fish/Hunt/Fight) bino harness. I use 8x42 geovids, so they are somewhat bulky and several options were ruled out just because the binos were too big.
Out of all of those I like the FHF Gear and IPI bino manager (customized) the best. I actually took the IPI bino manager harness and customized the crooked horn bino cover to attach to it and I like that setup best for archery hunting. The FHF Gear bino harness is a close second, but it is somewhat loud when scraping against brush when crawling in on animals while archery hunting and has openings for dust to get into.
I didn't like the S4 lockdown as even the large size was too small for my binos and the straps dug into my neck. I couldn't get it to fit comfortably. The Badlands bino cover seals up well, but is pretty big (but binos fit in it) and if left open and I bend over, my binos have fell out, which isn't good. My binos didn't fit in the Sitka bino bivy. It was a good design, but the magnets were pretty weak. The AGC (1st generation) bino pack was pretty good, but I customized that one quite a bit too. The main buckle holding the top flap down doesn't stay shut and it is just a tad too small for my geovids. I've used it with my old Nikon Monarchs and it works well, except for the main buckle not staying closed.
Here is a picture of my FHF Gear Bino Harness:
Here is a picture of my (modified) AGC Bino pouch.
Ron