This list is incomplete, I assume, please add any new Transition Switches you find to the comments and I will add it to the original list.
Full Guard Top (Not Postured) to Stacked Guard - Wrestling Transition level 2:
Press L1 and Transition up to Get Up, release L1 midway, transition is accelerated and becomes Stacked Guard making Full Guard Postured Up position unnecessary to achieve Stacked Guard.
Side Control Top to Side Saddle Top - Wrestling Transition level 3:
Transition to North South, press L1 midway, transition becomes Side Saddle, a transition not otherwise available.
Full Guard Bottom to Half Guard Top - BJJ Sweep level 1:
Transition to the side to Get Up, press L1 midway, transition becomes sweep to Half Guard Top, a transition not otherwise available. Works well with the Full Guard momentum transition.
Full Guard Bottom to Rubber Guard - BJJ Transition level 2 with Rubber Guard:
Press L2 and Transition to the side to Omoplata, release L2 midway, transition becomes Rubber Guard and is accelerated. A stamina advantage can speed this up drastically.
Side Control Bottom to Sprawl Bottom - Must have Single Leg Takedown from here:
Press L1 and transition to the side to Single Leg, release L1 midway, transition becomes Sprawl and is accelerated.
Side Control Bottom to Half Guard Bottom - Must have D'arce Choke:
Press L2 and transition to D'arce Choke, release L2 midway, transition becomes Half Guard and is accelerated.

Comment