I started using one years ago back in the early 80's when I started flying RC helicopters. I got the idea from reading a old RC/ Helicopter book from England. Seems that the Brits like using them alot, So I thought I would try it, I loved it and have always used them since. I like the secure feel that they offer. When flying fixed wing you can take your hand off of the throttle stick and swipe at nats or other pesty insects that fly around your face. To me it's a safty thing. But that just me!

Here is the model that I use. It's from Spring-Air products in Florida.

http://www.retracts.com/radioTray.htm

Jim