Here is an excellent article I think makes a lot of sense. :) THE JIG JOGGING HORSE* By John O'Leary
My mare can sometimes be jiggy coming home because she is barn sour. It takes a lot of work and my girl still isn't over it. Some rides are great and other times she seems to have reverted, depending on her energy level. It definitely helps to keep her ridden regularly. I work towards riding with less contact. A loose rein is her signal to walk. If I take up contact, it is like her signal to "go." That's why I believe in the article.