[GaryVoshol]

I reopened this thread for two reasons.

First, it could serve to provide guidance to other teams that are contemplating a similar solution.

Second, I'm not sure if this is a valid solution. You said the angle would sit on top of your structure that defines the FRAME PERIMETER, and that's all well and good. So the 1/8 inch of material that hangs vertically outside your FRAME PERIMETER would be counted in the "hard parts". But I see lots of layers of fabric between that aluminum angle and presumably the 3/4" plywood that it surrounds. If the thickness of those layers of fabric is greater than 1/8 inch, it will push the outer edge of the plywood to more than 1 inch outside the FRAME PERIMETER. Something that you need to examine before you conclude this is entirely legal.