Every time I try to post a reply for the past week I get blown off! I’ll try again!
Thank you very much Bumpkin, Dublin, Hillary, a work in progress, and Laurie B for your comments.
My thoughts - the auto release is more effectively used in the hunter divisions because most importantly it allows a horse to attain its best jumping form. It also can be used to improve jumping form. The only time I could say that I use what looks like a crest release was in the equitation classes. When I rode my hunter “War Dress” in the equitation in the 70’s my release looks more like a crest release but iit’s still an auto release. In equitation you will be taking more of a hold and loose the auto release look - you the rider are riding the round and being judged accordingly. In the hunters with the auto release you tend to have a slacker rein because the most perfect auto release - with straight line- comes from a rider and horse being in total unison with each other.
About a shorter stirrup helping to attain a better auto release - I don’t think that has anything to do with it. I rode my ponies in a shorter stirrup sometimes, and in the junior hunters I rode a hole or two shorter than in the equitation. An auto release comes from a solid seat and legs which are used in conjunction but independently of the hands. Does anyone remeber those exercises that Frank and Wayne Carroll used to make us do - like riding without your hands aroud and around, and the two point position with your hands up off of the neck(no support whatsoever! - at the beginning of each lesson which used to kill us?