Hi David. You and your son make my day every time I watch your videos. You come across as such a gentle, caring person and doing everything with your son so he learns too is extra special. My wife of 43 years died suddenly last year and I've adopted her Smart 451 2010 and am stripping it down to the Tridion cage and checking everything from top to bottom. You and Auto Knight are my goto channels as everything is grass roots with no showboating or gimmicks. Just pure commonsense engineering of the old school logic variety. I'm lucky in that my wife bought her 451 from a person who hardly drove it and kept it in a very dry garage. So basically there's zero rust and all the hardware is as free as the day it left the factory. I cry when I see you struggle trying to get yours apart but I guess that's part of the interest, how you prevail however hard things are stuck! Please do address the rust on the Tridion cage and De Dion arm though, as these areas if they get any worse are likely to lead to an MOT failure or worse! Keep up the good work and say hi to Julian from me and my dog ALFIE! 😎 Good luck