SA profile uses PU. It's even printed on the inside of the caps.
I'd say DCS could also be PU also since the ones I have seem flush, but .005" is a tiny amount, so they could also be 4U.
I don't own any DSA caps right now, so I can't check those, but I think I remember seeing what could have been 6U printed on the inside of one of them at some point... Best if someone who as some chips in with more detail I guess.