So here is the Redesigned leaf, making the Pi Zero sit a little more centered along the rail. It leaves 2mm final clearance from the highest point (minihdmi and wifi) to the next board.

The 3d printed pegs won't last more than a couple removals. It's just the quality of my printer. Regardless. Look at that flush mount! The supporting feet are 1mm thick and JUUUUSSTT clear the GPIO.

HAS ANYONE ELSE NOTICED HOW WARM THESE GET? Guess I'll have to mount some air handling...