Me as got this totally wired and I ain't ever used no steeenkin heel.
Jam with left hand, right in crimp. Step right foot onto leftmost smear, left foot into break, with toe on cup bit. Turn left hand to undercut, get top pebble either pull through or go again with right to top.
Without pebbles, either dyno to top from same position, or use no-hold dish in a static stylee. All top fun.