Private Class No.16...

A private class working on butterfly guard and the basic butterfly sweep. The techniques went something like this:

Basic butterfly sweep: right leg flat and hooking opponent's inside thigh; left leg up to give other attacking options; underhook right arm under opponent's shoulder and grab low at waist; clamp head looking left to opponent's chest; stuff his right arm into his chest so he cannot base out when swept; also place own left elbow behind left knee to help avoid rolling onto elbow instead of shoulder; move left under to switch hips as right hook lifts opponent and drop 90 degrees onto shoulder or ear; if opponent resists, keep driving and complete the kick; follow opponent over and secure mount or top quarter guard; then knee slide into side, secure head and block hips.

There are also options if the opponent secures an underhook first, which is to secure overhook then launch same attack from there.

The same thing can be applied from  half guard, but secure left leg underhook and tripod out on right.

We also played with guillotine and loop choke attack, and with the arm drag and collar drag. The latter involves a cross grip with one hand and slide out opposite leg; then pull opponent in and attack back.

Things to remember: underhook and hooks are always on opposite side of direction opponent is falling; triangle with elbow behind leg; fall onto shoulder as driving leg drives; hip switch and tripod.