1) Escaping mount with the "Umpa" or "Bridge" escape.
2) Arm bar from guard.
With the arm bar, we're working three different variations:
1) Traditional arm bar set up.
2) High guard.
3) Extreme high guard.
How many arm bars do you know? I think a better question is, how many arm bars do you need to know? Personally, I'd rather OWN a few variations than know about a ton of different options/angles/set ups/positions, etc. I'd rather have one arm bar I could hit from anywhere than ten I was shaky with.
What's your favorite arm bar? Do you prefer to do it from the bottom or top? Any special details that makes yours different, or at least work better for you personally?