Here are several links for pull-pull. They will tell you what you need to know.

http://members.cox.net/bdfelice/Pull-pull/pull-pull.htm
http://webpages.charter.net/bobad/pullpull.htm
http://www.geocities.com/roger_forgues/PullPull.html
http://www.mindspring.com/~rellis2/rcpattrn/ppull.htm
http://www.modelairplanenews.com/cli..._pullpull1.asp

Here is the URL to Alan's RC page.

http://homepages.ihug.co.nz/~atong/ This site is LOADED with RC information. Basically, ANYTHING you want to know RC you will find here.