Looks like a good way to keep things squared up on parallel cuts where the bars are running in the same plane, but don't get caught up depending on it. Very rarely do I get to make notches that are parallel to each other.

Good method for getting the location of the next cut though. I personally use a sliding ruler to get the tube to tube measurements... alomost like an inside mic. then use a digital level to keep my cuts lined up, even if they aren't parallel.

Keep the bronze bearing and shaft lubed up on that HF notcher. The first one I had lasted about 10 cages before it started going away on me. The second one lasted a cage and a half w/o any lube. I've since moved on to a JMR notcher and will never look back.