The stepping pace can be a very smooth gait. I suspect on this horse it is very smooth as this horse is not being held up overly high in ventroflextion of the back and there is some element of a relaxed flow to this horses gait.
Valucraft, Duralast, and Duralast Gold are AutoZone's private label brands for lead-acid automotive batteries (manufactured by Johnson Controls, East Penn, and other manufacturers).
If you want to get brake pads from an auto store, look into the Duralast Gold CMAX brake pads. They are ceramic, come with any pad clips or hardware and the lube for guide pins and what not. They also have a multi layer shim on the back of them with the outer layer being nitrile rubber, so they are quiet.