70/30 (also 80/20) — Defending
Defending 70/30 in no-gi — 50/50 with the hips offset, and the offset is what frees the inside heel. Chase the angle back, hide the heel, and stop defending a symmetrical position.
Adapted from InGrappling, 70/30 (also 80/20) — Defending. System Games did not invent this curriculum.