I decided to move my fence back toward my body so that the neck would sit over wood and have some support. I can't think of a disadvantage of it yet. I also added two hand holds rather than just one. Just for extra push. If the Aluminium flexes too much I could always add a few more fastners. I have it set to 12 degrees right now. Right now if I max out the blade I can do a 1.5" piece with a hair to spare.
IS there a way to make a jig to do this kind of cut on a radial arm chop saw?