Indeed you have it right. In fact the PA did go through a whole set of range of motion and "does it hurt" tests which all indicated no fracture. The tuning fork

Indeed you have it right. In fact the PA did go through a whole set of range of motion and "does it hurt" tests which all indicated no fracture. The tuning fork was just a last check to verify that, and of course I had the option to go get an X-ray if I wanted it regardless. I just didn't see any need at that point, since the treatment would just end up being "take it easy on your hand and don't engage in any sports for a while."