What I should have said weight has nothing to do with frame size. It obviously has a lot to do with hip belt and strap size... which is why we should all be grateful to brands like Granite Gear and Osprey for having swappable harnesses on many of their packs.

Some Gregory packs work for me, some don't. I tried Deuter packs and the fit was good but the deal breaker was the shoulder straps - they were too close together at the top of the pack, resulting in chafing along my neck. Over the miles that would drive me nuts.