My experience beyond the 200 mark is that it is a LOT easier to add on than take off. If you can get rid of it to someone, I would be willing to share, too.
Cool beans on the chainsaw! I agree with your impressions of those news articles. The link to the professor story only went to the Guardian logo and the Wall Street Journal article was behind a paywall.
He does good work on brakes. Did your man with the angle grinder get through? It looked like he got a lot done from the video. Very excited about the boys and hoping it all goes well.