As a leader, I've been used to prepping a follower for a right turn by moving the follower's hand from right (on 5) to left (on 6) then to right (on 7) and spin them on 1 for a right turn. This is done in a fluent horizontal motion. But today I've seen the prepping as a vertical (more like a moon cresent), which had me perplex (e.g. I'm so used to prepping in a horizontal motion). Can anyone explain what I'm talking about and if so, what is the count to it (e.g. what is the count when the hand is brought up and down in a vertical moon cresent motion). Thanks!!!