Re: Quick 'probability of calling a shove' question
Ultimately, I think we should care about the times SB calls and BB calls. If we assume SB is calling with 25% of hands, and BB will call with 25% if SB folds, there will be some smaller range, say top 10%, with which BB will call even if SB calls. In this case, our equity when called is much worse than it was if we assume one caller with a top 25% range.
Which is why I think that just adding up the percent of their calling ranges is an OK approximation.