[AnAmericanMother]

The rack looks like a broken pace. It looks like a couple of times the horse almost falls into a pace, on his left side.

It does look smooth though. (ANYthing would be smoother than a long-legged, long-pasterned Thoroughbred hunter's springy trot!)

[HairOfTheDog]

Bay has that kind of trot too. The suspension time is so long it's even awkward to post it:
Up....[lookaround]......down....[nap]....Up....[lookaround]......down....[nap]....