Jack, I understand your assessment of the vertical green bars preventing bowing of the main rear braces and that's why I suggested leaving them in at the main frame hump, roughly halfway down the bars. I may have been using the wrong terminology when I said "bending" load. What I was trying to convey is that they will be adding nothing to the structural integrity of the structure because they are neither in a major compression or tension load, only preventing bowing of the rear braces, but that the twisting force of the structure would tend to try to break the welds at their junctions with the main frame and rear braces. Am I looking at this wrong? And if you have the rear braces nailed down with the anti-bowing vertical tubing at the main frame hump, do you also need the anti-bowing verticals within a foot of the terminus of the rear braces at the main frame rails? Help me out here, buddy.