Wow, that's impressive Perry!

I've bent a bit of steel and aluminum tube and it's pretty tough figuring out how to get the shapes you made. I know it always took a few shots for me to learn what the distance the leg of a bend would be from a fixed point on the tube.

It's that pesky spring back effect that metal has, and they're all a bit different.

Anyway, yours came out sweet and that's going to be like the Ferrari of packs when you get it finished.