most low stakes regs know what a terrible bluff line b/c/b is, and I don't think they expect people to bluff like that as such. With the FD appearing on the turn, I think they're more likely to pay off a bet/bet line than a b/c/b as at least TT can put you on a FD, and even if it's a bad call, some regs will still make it more often than they will a b/c/b.

That being said, a really bad reg might pay off a b/c/b more often than a b/b/whatever line. More info on villain required obv.