I know about the f8 limitation, but I didn't know if foCal used liveview's AF or not because it does have to be in liveview in order to work for my setup. That told me that maybe it was using that combination, and thus, might still work. Now I know.

Makes me wonder if when the camera is on a tripod and I'm using liveview to focus, that it's actually a really bad idea and less accurate.