Blocked Americana to Alternate Shoulder Lock

Learned from Steve in no-gi:

1. Go for Americana from side control
2. Opponent blocks Americana by sticking their head through to block
3. Change your grips:
1. the hand that was gripping your own wrist grips their wrist
2. the hand that was gripping their wrist changes to cap their armpit
4. Change your base by turning into your opponent
5. Pull up on the neck and down on opponent's wrist