1 - Reacting to a strong bridge
(start in side control, your partner bridges into you and attempts to base on all four)
When they bridge into your flop onto your hip so you are facing their hips.
Grab their belt with your top hand if you can.
Put your far knee in between their thighs (their hips should be facing down)
Get Judo control of their lower arm and lift it as you slide your near knee up under their armpit.
Lift thier arm as you roll them onto their back and slide your lower knee up to establish mount.

2 – Reacting if they try to bring their knee up to their chest
(start in side control, your partner bridges into you and attempts to bring their knees to their chest.)
Step over their legs and mount their knee.
Keep your weight and hips down heavy on their knees.
Grab the back of their lapel with your near arm.
With the other arm reach down and grab their top leg at the pants above the knee. Try to straighten this arm, allowing you to pin their knees down with the structural strength of your extended arm.
River-dance your outside ankle over their ankle (your ankle of the leg which did not step over their legs yet. rotate your ankle behind you so that it lands across their ankles, stapling them down).
Kick that leg over and land behind them.

If they turn away you have the back. If they turn into you you have side control.

1 - silver back drill (partner on back, knees up)
Outside hand on knee, post inside their knees with your fist. rotate around that posting fist. switch hands, rotate back.

2 – scissor pass drill. (facing partners open guard)
Post on head to left side of their hips. Grip legs with your right arm. post with your left hand. scissor your legs up so your standing on your head. outside leg kicks up first(left leg). Land on other side with legs. Switch head to right side and repeat from other side.