Eddie: I've scoured this thread again, after several years not looking at it, and haven't run into the question or an answer yet: Why that latch? I've been looking at my handy Destaco catalog, and it seems that if one were to use the vertical-pull 344R instead, mounted on the "side" of the swing arm tube rather than the straight-pull clamp on the end of the tube. It would fold down against the swing arm, and just not have the handle sticking out in the way so much. You would have to add a small piece of angle iron or something to aim it the correct angled direction, but that's not any more work than the mounting plate that is on it as it is. It just seems to me that it would end up as a "cleaner" installation.
Edit: apparently didn't scour it hard enough: found it about four or five pages back.