Yes. And, Extensor Action should be part of Chapter Six; "Power Package".
The whole darn book should be re-written without changing a single concept or procedure. Color Pictures, Colored Overlays of the Flying Wedges, etc. 600 Pages. 25 bucks. Big deal.
A million Copies will be sold. It would become the standard text book for high school and college. Expanded and including video.
The current Owners can't see further than a Bull in a Cow Barn.
Don't get me started.
you could keep doing your drawings,here on site which i find immensely helpful. When it comes to pp3 just take a photo and upload. YOU have the knowledge to help many, and its appreciated