Through twitter we found this great video. Chris has been a wonderful person to talk to, and he has some great high quality videos: https://www.youtube.com/user/chrisburton40/
Tweet from @ChrisBu36390714: https://twitter.com/ChrisBu36390714/status/576392548777766912
@SwimmingIdeas Closer to the elbow. There’s a scene in my “Backstroke for Beginners” video that shows it.