My order came from McMaster today. I got an 8' bar of 1/2" 6063 Aluminum. It is the exact same difficulty as 5/16" CRS. I took down a 12" piece braced, then got stuck on a 10" piece braced. That's exactly where I get stuck with the 5/16" CRS. All you bending monsters - this is the stuff for your thickest bend. Someone taking down bastards and above will be able to take down a 7" piece of this stuff unbraced. I can't even guess what length and diameter Tim would be able to take down braced.