It is imperative to choose the optimal play. Today I’ve heard a counter to a bull fighter pass would be to shoot your legs up into the air to lock on a triangle or high guard. Considering the three variables Options, Position, and Scale; I believe this would be a terrible mistake and would be less that 50% effective. Gordon Ryan, when facing a step around pass, bring his torso towards his opponent while at the same time brings his knees to his chest to get underneath his opponent. He then usually goes for one leg and bring the opponent over to take the back.
Marcelo Garcia operates in a similar way by clearing any possible cross face and moving his leg away then into a 180 degree guard recovery. By using his legs or a short roll to reset.