Bob, I think these high mounts must be for close & fast shooting, because they sure ain't any good for prone. Maybe there is some other reason (co-witnessing, etc) that doesn't have to do with ergonomics.
When 90% of the good AR mounts are close to the same height, you would think they were on to something. I'm sure if a 1.25" height mount were "ideal," then LaRue, Badger, Geissele, and Nightforce would offer one.
I guess if you are trying to shoot NTCH with a scope you might run into some issues with mounts though.
