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...I think "any" saddle out there will perform and feel better wearing it lower where more bone structure takes the stress of the load, rather than the soft tissue and floating ribs.
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I agree but... when you're hanging on a saddle feet off the tree (it happens) you need tight fitting legstraps high on your leg to keep the harness belt low. Obviously the NT harness don't work that way, they're designed to balance your weight between loose fitting leg straps and the waist belt (the NT legstraps won't keep the harness belt down low). So it's very difficult to design a successful compromise between those two different design paradigms, ie maximize comfort for your legs and keep the waist belt low in all climbing positions.
My NT Tengu waist belt rides low when my feet are on the tree, higher when I'm in full hang mode, it's comfortable that way. My Sequoia is much the same, I'll move the legstraps down in full hang mode but I can't last too long in that position because the straps start to cut into my legs. In an NT you can hang all day if you need to.
The NT style harness favors climbers who have to spend more time with their feet off the tree, this could be canopy walkway/treehouse builders, canopy researchers, anyone who does long multi-pitch climbs in very tall trees and of course the "havin' a good time" rec climber.
If you're the kind of climber who has their feet on the tree 90% of the time I don't think NT is going to give you anything you don't already have with your favorite harness.
-Andrew