Cues:
Get the heel very close to the brace point
Hinge with flat back
Keep hips square to the stretch
Mistakes:
Rounding the back
Twisting the hips to the side
Having the heel far away from the wall so the lower leg loses tension
Get the heel very close to the brace point
Hinge with flat back
Keep hips square to the stretch
Rounding the back
Twisting the hips to the side
Having the heel far away from the wall so the lower leg loses tension