I disagree about bluffing
the regs. You've got the most FE with those guys as long as you don't get out of line frequently.
This is going to be really abstract way to think about this hand & FE with combinatorics, so bear with me. If you consider this guy's 3betting range to be JJ+/AK/AQ, you can break it down to weigh the combinations he would fold.
AK/AQ = 24 (discount some of the 32 combos due to the fact you're holding KQ)
JJ+ = 18 (discount some of the 24 combos due to the fact you're holding KQ)
Which boils down to any tight reg would fold 57% of the time by the turn if he's not holding JJ+. Other factors go into villain's decision making, but that's the math side of it.