I heard back from Doug at Long Valley.
“The Seven has no drag or friction controls. In fact, it was built to have no drag or friction so that the movement is super smooth, especially the starts and stops. The inertia of the camera/fluid head and counterweight provides this. It does have a tilt lock, which is near the bowl/camera end of the jib.”
Doug
I won’t be getting the Seven Jib. I definitely want the option of drag.