35 min
Use the free foot as a counterweight so the reach does not spin you off
A flag is a free foot used as a counterweight, so you can move your hands without swinging. The further the hand reaches to one side, the further the trailing leg goes the other way.
Flagging is what stops a barn door before it starts.
Have them stand and try each one on the ground before anybody climbs.
Smearing is the other half of this, and it wants slab: heel low, as much rubber on the wall as you can get, and trust that it holds.
Run both at once rather than one after the other. One coach takes half the group to slab and smears, the other takes half to the overhangs and flags, and they swap at the halfway point. Each technique still gets the terrain that rewards it, and nobody spends half the lesson waiting for a turn.
Flagging the wrong way. Very common early. The leg is a counterweight, so the toe goes opposite the hand. Check the toe, not the hip.
They will not trust a smear high up. Take it back to slab at head height until the foot stops hunting.