Jennifer III: Rethinking The Pistol As A Weapon Of War
Please read her latest.
1) More work needs to be done on normalizing open carry of long arms. There's a new project just spinning up on that very topic; more asap.
2) A concealed handgun is also less visible to all sorts of surveillance technology, from CC videos to UAVs in optical mode.
3) If your handgun is now your primary, better start expanding your training from the standard pistol distances (< 25 yards). To begin, put a standard IPSC silhouette at 100 yards and determine the holdover needed with your piece, sights, and load to drop rounds reliably into the boiler room. Keep at it, then extend to 200 yards.