And there it is.   Hopefully I can attach the shoulder straps tonight, so this can actually be worn, but otherwise I think this pack is done! (but for weathering)           So... the backpack strap.  I had a thought on that.   I'm using commercial straps, of course, but the basic idea should be sound for pretty much any straps that use webbing to attach to the pack, and where you want some adjustability.  (Simple slides and th