Looking for a pendulem casting video or pictoral tutorial

im looking to start doing a pendulem cast and was looking for a good video or pictoral tutoral.ive seen loads of videos on youtube but i cant really see the movement of the lead during the cast. does anyone know of any clear tutorials.

http://youtube.com/watch?v=Y3yfjkTYmQ0

Cool vid!

is casting radioactive isotopes not bad for your health !?

http://youtube.com/watch?v=AGR_7XZOrS0&feature=digest_fri,7-99:digest

that second vid isnt a great example as he uses his right arm too much to control the swing and lifts his arms too high not that i know much