...to me, to have good form.
http://www.youtube.com/watch?v=BunvrI9Q9PA
http://www.youtube.com/watch?v=VMjl2zrBrHo
http://www.youtube.com/watch?v=JMtpqPaU7-c
edit: and this http://www.youtube.com/watch?v=6v-iIXmEqMg
http://www.youtube.com/watch?v=BunvrI9Q9PA
http://www.youtube.com/watch?v=VMjl2zrBrHo
http://www.youtube.com/watch?v=JMtpqPaU7-c
edit: and this http://www.youtube.com/watch?v=6v-iIXmEqMg