This is an alternative to the Eliminator traverse. Start at the horizontal edge on the right end of the face near the top of the slab, under the crack. Now step high with the left foot on the mid-level rail, and move all the way to the mid-face edge with the left hand (as for Fire and Ice sim.). This move involves a balancing act as there are no mid-way holds to use, therefore you end up moving left without anything to hold onto until you grasp the edge. Bring the right hand over the top of your left to a micro-pinch above and slightly left of your L. hand, slide your body over the left foot, and finish by going left hand to the mono.
This is mid-face on Tree Slab and goes right to left.
Spotter or pad.