Point of interest: A Jr. Cowhorse is NOT legal to show in classes such as pleasure, horsemanship, reining, cowhorse, or any of that at all. You can't have any sort of gag.
If this horse is over age he needs to be up in the bridle, in which case I would look into a billy allen shank bit. It is flexible, but much better balanced and softer than a TT by all means. Never had a horse go bad in that bit. Then find out from there if you need something else or if that will work for you.
Pssh.I didn't pick up the wrong lead
It's called a counter canter...
...A very advanced maneuver.