Went out this past weekend with 8lbs on my back the rest on the bike. Around mile 23 my butt was killing me, took the backpack off and threw it over the bars on top of my bar bag. Instant relief. Hard to imagine those few pounds making that much difference but I would say get as much weight on the bike instead of on your back. I was watching the Tour Divide movie and you will notice that Matthew Lee keeps almost everything on his bike, he does have a small fanny pack. My 2 cents.
Still hoping JReeves jumps back in and passes on some more info.. and pics. I have some patterns I made up for another design but really like his better so I haven't moved forward with anything.
Any other tips or pointers before I try to stitch something like this up? JReeves, any other pics to share or post? Here is what I have stitched up so far. Obviously still need a decent, color coordinated seat pack.