Re: Tenzing Pack???
Not sure if this will help.
The main design guy behind Tenzing, Jay Robert, originally started Blacks Creek Packs back in the day. I am not sure what happened with Blacks Creek but about the time they started moving stuff to be made in China there was a buyout or something and not too long later Tenzing showed up.
I have used and still own 3 of the Made in Idaho Blacks Creek Bags and they are excellent. The Canadian which is very similar to the 5-6000 series is my main elk hunting pack and I have carried huge weights with them for miles. I have owned it for over 7 years and wear it every day I hunt. I have yet to have anything fail on any of their packs. IMO they compare to anything out there unless you want to go high end like Kifaru UL or KUIU but you will pay way more for those.
I have no experience with Tenzing just so you know except that I have looked them over pretty well at Sportsman's Warehouse. They look very well built and almost exaclty like my Black Creek bags with some nice upgrades and new materials. If they are doing things like they did with Blacks Creek then you will be very happy with them.