Crouch start matched on the crimp rail on the face. Compress up the arete and sidepulls to a nice top out. The alternate sit start with a left hand on a lower crimp and right on the original start rail is differentiated as Van Betten Arete - Alternate Start for those who prefer.
possibly my worst top out ðĪŠ was initially starting with my left hand where my left heel was which adds a couple of moves... but after looking at the guidebook I started on the crimp rail and it felt much easier