Looking at the Blaze 60 (46oz) and the Crown2 (36oz). Both are 60L and get great reviews.
The Crown2 is lighter but the polypropylene frame and thin fabric that covers it concerns me long term. But I like the adjustable belt.
Like the adjustable torso on the Blaze and it has been around a longtime, so hopefully any bugs have been worked out.
Opinions will be greatly appreciated!
Note: I tried a friends ZPack Arc Haul and found it uncomfortable for me, he loves it.