When I roll, I often end up in some variation of open guard. A common position that I gravitate to is the ‘shin on biceps’ guard because it really locks a guy in place. I’m pulling forward on his collar, breaking his posture a bit, while at the same time pushing out using my shin on his arm.
I feel safe in this position because of the good control, AND I have several attack options I can use.
Here is Draculino demonstrating how to shoot for a triangle. Give it a look and try it today in class.