Hi there Guys! It is actually a very tricky and nasty americana, that works very good especially vs bigger opponents. After you have threatened a bit with climbing high for rubber/triangle/armbar and have good control with your legs over his upper body you can start setting up a triangle on one side. Then according to his response there is a possibility to feed his wrist to your arm on the opposite side that is actually placed across his neck and then simply lock the figure 4. It ressembles an "improper americana" from side where the opponent has his head inside your figure 4 and thus defends the submission. Unfortunately for him, from guard with high legs and good control you are actually blocking his shoulder and the pressure is much stronger which normally forces a very fast tap, depending on the shoulder flexibility of the opponent.