Nice one Drew , gonna copy this to my LBG file too.
I believe the original post had a slight typo in 19. Should read "Stance Line, Plane Line and Flight Line are normally parallel." I know this is a weird thing for the kid at the back of class to note.
.......Hey its recess...
You are right. I just copied something I found. It is now corrected in post #1, but I can't correct it in the other posts ...