I am at -39BB/100 with 130k hands play (still a small sample) for online play (cash games only). There is a lot of information on BB defense in regards to when to flat, raise or fold, depends on what position the raise opened the action and for how much. I pay for an annual subscription to a website and many of them out there have valuable information like this. Maybe try googling BB defense cash games and see if there is anything on the web.
My numbers you gave as a comparison;
Fold blind to steal is 67.3%
3Bet when facing steal is 7.64%
PFR is 7.21%
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