okay...I think I am now dialed in with this Ergon Backpack
the pack comes in multiple sizes and is adjustable
being GWADZILLA SIZE I extended things to the taller range of things
this adjustment made it such that I find the "sweet spot" when I put the pack on and do not move it around until I take it off at my final destination
then also...
since I am moving away from my old pack to this pack I had to dial in my system
a key chain caribeaner with my house keys and various U-Lock keys is attached to the chest strap
a pump, a tube, and an Alien multi-tool are
stored in the packthe pack is large
so I am taking advantage of its size and carrying a larger travel pump and the larger multi-tool
http://gwadzilla.blogspot.com/search?q=Ergon