Beep Beep! It’s the Clue Bus

I brought Harley in and he seemed happy to see me, which was pretty fun.  I groomed him and tacked up and went into the arena.  He had a few squealing fits at the very start, but we discussed and they stopped.  Then on to some work in all gaits which started out a little exuberant, but ended up like this (which is good):

In the  second video he is still quite mannerly, but you can see that he wants to carry his hip to the inside when traveling to the left.  I do agree with Dr. Woodford about perhaps having his stifle looked at: