Just a short note:
I decided to leave Go Thunk Yourself, Compleat! alone and consider it final.
There is a ton of stuff I've gone over since, and in reviewing my original prose (which is due out on Amazon shortly), I figured that I have improved in my writing style - but don't want to re-write those early books to update them.
So I'll be writing a fifth GTY book, which will be Go Thunk Yourself, Revisited. There I'll correct my prose sins of the first four books and update with the latest research - plus go into techniques on acquiring/improving/extending personal abilities.
While there is a ton of stuff to cover, hopefully it won't ramble.