can't recall how i heard about this site, but check out the videos and read the text .... it's worth the wait if you have a slower computer
if you study the videos over and over, eventually you start to notice the legal versus the illegal and the good mechanics versus the injurious
http://www.pitchhit.com/mainpages/Pit%20by%20Rules.html
(btw, i vote crow hop based on your original question)