Welcome aboard the board!

you're going to have to elaborate on TAAU?

I'd like to hear more about your thoughts on the ball joint. I feel it's made a lot of transformers possible that never would have been otherwise, but I can't help but see your point, it's a good joint design, but when it doesn't work it fails rather spectacularly..
There are other joint designs that are perhaps not as versatile however they are also more robust in many ways.