We've tinkered with whip control for nearly 50 years. In the past year we've done most of our whip control flying. For us it has proven to be a simple, inexpensive form form backyard flying. We are hard pressed to find a more enjoyable activity for the amount of cost and effort required. To see our activity with swing control models, check the following link [link=http://www.smallflyingartsforum.com/cgi-bin/yabb2/YaBB.pl?num=1223680930/180]whip control[/link] . Enjoy, there are about ten pages of data in that thread.

Al