Gotta put a good word in for Dan here....
I've also got one of his 3 day packs. Contoured shoulder straps, 1000 denier cordura (actual Dupont Cordura), assembled 1 at a time by the man himself..
I too carry my daily, gotta have it crap in this pack, and it was handy at a local show when I purchased some ammo. I carried a case of .45 PLUS all the extraneous crap I carry to a show, and schlepped it roughly 1/2 mile to the truck....(not a great distance, but anyone who shoots .45 knows the stuff is bleeding HEAVY, plus an extra 10 or so pounds of stuff).
The pack was still super comfortable and none of the seams showed any signs of stress.
Just my $.02