Still very interesting content and great work, as a Spyder owner myself I enjoy watching this very much even thought my caliper does not have any issues. By the way, I would definitely treat all the subframe rust that your car has. I would litteraly strip all the parts, sand them, put rust converter then paint them. I did that to mine (without stripping the part cause I am not a good mechanic) and it does awesome now. You can also treat cavities using special products (dinitrol or else);