Chet,
I have not used the one you listed but I have both a Alaska Guide Creations KISS Max and a FHF for two different pairs of binos. I prefer the kiss max because the lid protects my binos better, it has a small pocket on the bottom that I put an emergency blanket, outdoor edge knife with 3 blades, and compass in. The AKG also has a mesh pocket in the back that I put my elk reeds in. As well as a elastic flap on the top, but this flap is worthless you will lose anything you try to put in this pocket if it is flat I lost multiple reeds last year. The back straps on the AKG are larger and sometimes I would have to adjust them is my pack set on the seam wrong. It also has mesh side pockets but I never really use these because I prefer to keep my wind checker clipped on with a carabeaner that I wrap in leukotape.
The FHF I have is smaller. It is a great case but I did not use it once last year. I prefer the straps on the FHF compared to the AKG as they are smaller and never bunch up. The lid on the FHF does not protect the sides of the binocular opening like the AKG. But due to the design of the lid you can tuck the lid behind your binoculars. This case also has side pockets which are not that useful for me, but can hold a wind checker. It is also quite a bit lighter than my AKG if you are counting weight.
Either way, they are both great harnesses.