Update:
So I put another 195 rounds through this pistol today... ran flawlessly. I noted my POA/POI wasn't that great... about 2" low using a cover hold at 10 meters. When I got home I remembered, it shipped with another sight in a little baggie. Upon closer inspection they're numbered 1 and 2... 2 was installed and appears to be taller. I just swapped in #1 and we'll see what happens on the next outing. Note the sights are plastic, for what it's worth.