Here are some advanced 9 finger tapping techniques you may find interesting. I am playing the Chapman Stick but I hope you can get a lot out of it. The link is a version of While my guitar gently weeps. I have lot's of free tapping lessons for Stick but parts of many can be used on guitar. These are not for profit videos here. I just want to share the techniques.

http://www.youtube.com/watch?v=dYKB6Lag-wg

Thank you

Bob