They'll try that if they are accustomed and easy going jumping, especially when you are just starting them out with one or two poles that they could easily clear. Bay makes a mess of poles, and I never worked on fixing it because he didn't really need the benefit. He has good impulsion and extension and it was really just a game. I set them up for the pony really, and even after she knew what she was supposed to do, she'd trot in, then jump the last ones when she got through enough that she could clear 'em.
I start them out with two and say "turot" and click in a two-time rhythm to enforce the trot. If they jump, I give a tug correction and keep them going 'round until they trot it. They usually only try that the first time of the day when they aren't really with the program. Then I add poles until they can really get a good rhythm up before it's over. I think doing many in a row is what build the muscle memory that will change the way they move. I don't think a few does that.
I haven't scrolled back yet. What's up? :')