I have a Hyper 3.0 and a large Adventure-esque bag that doesn’t appear to be available anymore (it splits into three separate bags – Hyper 2.5 size ‘carrier’, 20+L main section and another top ‘mobile’ bag).
I’ve bike-packed, commuted and done ‘back country’ guiding rides in the Alps using it, including carrying pads. Previously I’ve owned Deuters, Karrimors, Dakines and Camelbaks, and the Wingnut is by far my favourite – the low-rider set-up makes a lot of sense to me.
One of the things that I really like is when riding steep stuff it doesn’t clout you round the back of the head. Little thing, big difference.
FWIW, Max at Roughrides is a great bloke too. 🙂