That's simular, as we say back in Indiana, but not exactly the same. I set the min. edge to zero also. There is some other setting about discounting the blinds or something, but maybe my version doesn't have that. Mine is v1.18b.
The question though is about solving for both ranges at the same time. BB's calling range is not an assumption. The idea is to find the
Nash equilibrium. Disclaimer: At best, I just barely have a clue what the hell I'm talking about.