I was having trouble with the hammer then I looked to the left and saw the jump rope, all I can say is I Hope your in the wrong toolbox.
I haven't done many angle aluminum frames for this reason. We seem to share the same OCD. But it doesn't mean you can't use it and make a nice light. Depending on where you want to see the ties you could drill a hole a 1/4" in from the top or across the bottom. Use the outer edge and the new hole as the place you make the loop in your tie vs wrapping it around the whole frame. There are a few other options but that's about the best.
So far so good! I'm very excited for this