I'm trying to learn more tricks, and handstands are popular.

For those of you that know how to, How do you position your hands

like this:http://www.youtube.com/watch?v=g-NLH...eature=related :03 seconds

or like this:http://www.youtube.com/watch?v=XWjih...eature=related fast foward to :45sec (warning girl in panties)

or like this:http://www.youtube.com/watch?v=FwSjRtn6Eng

Which position is best? WHich one is the most sturdy? thanks for any advice