I'm not sure exactly what my torso measures, but i'm 6'3" so fair to say it's not too short.

So I bought a Unaweep 4800 with the 4" frame extensions. I kept cutting a little bit off the extensions until I got it right for me. Ended up with about 2.25" extensions.

The frame is plenty high to get the pack up off my hips, and get a good geometry to use the load lifters.

The most I have carried is about 60 lbs, and that carried well, even with past L4/5 disc surgery.

Here's a couple pics to give an idea how it carries,

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