Originally Posted by ~*~anebel~*~
Yes putting weight in a stirrup, opening a rein, etc works for a time, until the horse gets wise to it and starts ducking out.
See 1-3-17's post.
That AND it doesn't teach your horse balance or straightness, it just "knocks" him on his correct lead. And shifting your weight around over the fence will affect the use his body over the fence. Agreed with 1-3-17. Keep your horse balanced and straight, remain balanced and straight yourself, and your horse will begin to land on the correct lead. AND it will make it significantly easier to teach him a lead change.