Is anyone here familiar with Sit Means Sit , or robin MacFarlene from That's My Dog Inc. And there style of OB training where they use an E-collar for OB Training as opposed to a choke chain? If so what are your thoughts on it. Pat Nolan from dogtra also uses this technique. What I have read of it seems to be a viable new training method. They use the collar mostly as a motivationl tool as opposed to an aversive.