Soory maybe didn't make meself clear.
Get all four limbs onto the right-hand side, into a layback position and you get in balance enough so as not to have to slap. Normally you have left foot on left hand side and left hand cupping the arete (thumb down), right foot in pocket and right hand on sidepull. Instead of trying to hug your way straight up, rock right from this til you get left foot smearing up and left of right foot. At some point you flip left hand from thumb down to thumb up, I forget when