Aha! Okay, I completely misunderstood what you were referring to there. My bad.
So I've already taken everything that's been offered except for Brawling: Martial Arts specialization. So, if my Strength attribute is 3D, then getting one pip in Brawling: Martial Arts specialization would put me at 3D+1, and should cost me 3 CP/2 = 2 CP (rounded up from 1.5), correct?