Update...due to Global Entry, we processed quickly, officer gave detailed rundown of what to do next. Claimed bag, dropped of at United bag drop, went through TSA checkpoint (no PreCheck line), had 20 minute visit to UA Club, gate E10 just steps away. Boarded UA1933, then waited 40 minutes "due to late inbound aircraft", despite being seated on craft and Captain announcing delay was due to a "baggage issue".
Most of all- thanks to all for your previous responses! Trip was otherwise great.