My build was balanced to a degree, I don't recall it exactly, but it was probably something like 18/21.
The thing is that you don't need to be so fast if you can find a distracted person, or somebody who wants to get close to you for some reason [shielders are my most favorite people to punch, they lower their shield and immediatly get socked in the face
]. The thing is if you go for strength, you really aren't limited by your armor selection and the fact that you need far less hits to kill people means less chances to make mistakes [hitting somebody in the chest which could cause a glance, even though there's almost no aiming].
Next STF, I'll have to see how much each PS is worth for punching [probably mondayish]