You're just like myself Marv, can't resist having a good root through someone else's things.
No matter what, you always find something that you can use or modify for your own use.
I actually reckon that a really skilled model engineer only knows a maximum of about 1% of what there is to know, so there is always something new to learn.
I already have that link in my favourites, and yes, there is a lot of good info contained therein.
John