I am VERY impressed with the K4/terratorn. I’ve been stubbornly using my Kuiu packs for a few years..decided to try the k4 this year after I realized the Kuiu was making my back issues worse for whatever reason.
Was able to get an entire boned out elk back to the truck solo yesterday. It was 3.5 miles as the crow flies and about 1800ft above the truck, all downhill but no trail. Not terribly rough country.
No idea what the weight was but I did hind quarter, back straps/tenders, shoulder with blade bone in, and neck meat, plus antlers/skull cap as one load. The other load was all my gear/gun/etc and the other hind quarter, shoulder, neck meat. No real meat loss to speak of so it call came out.
Smallish bull but being able to haul a massive load I was able to get the whole thing done in one day..essentially two trips vs three. 
The meat straps down to the frame very well in factory configuration and the frame and harness are nice and stiff to keep things stable.



Final load with the moon rising! Killed him before sunrise got him out just after sunset.
I know this is more about the terratorn…so far I like it, not a game changer, but functional and serves it purpose of easy access. I do like the wings for securing my tripod/15s, and gun.
This was the 3rd animal I packed this year with it, but deer are small/easy and don’t really challenge this pack 
