So I'm flying international out of SFO next Monday on UA. I have Pre-Check and two questions:

1) I know SFO uses a private contractor instead of the TSA. Does this mean SFO isn't experiencing the same security checkpoint issues many other airports are? (I.e., no excessive delays, Pre-Check not being open, etc.)

2) I checked SFO's website and it says that only the domestic terminals have Pre-Check. It looks like, however, I could clear security in T3 and walk to the international terminal. Is this a) possible and b) necessary, or is there Pre-Check in the international boarding area?