Well ... The gunsmith at the shop called and said my gun was ready. Turns out he worked on it ... By the time I got to the shop the gunsmith wasn't around so I didn't get to talk to him. The ticket said the extractor was cleaned and adjusted. He put 50 rounds through it w/o issue. I guess I'm glad they didn't send it to Sig ... Although I am curious what they would have said. So, I put 150 rounds of Federal FMJ through it w/o issue. Seems to work well.
I'll continue to test the pistol before trusting it for a home defense weapon.