Hi, in many theory videos, coaches are talking about the 1-a defence frequencies vs. a bet. What I don't understand is how exactly should the range advantages affect this frequency. Is there some videos or publication going deeper into this topic ?

The thing is I notice often coaches are extremely accurate about which combos they would defend according to the 1-a calculation. But not at all questioning how, when and why we should defend less or more than 1-a.

Thank you.