I used to sell tires to shops, and I can see the discipline they try to instill in workers.
I ordered Michelin PSS set on an RX8 with Enkei wheels, and waited in room for about an hour or so.
I went out in front of bay doors to watch some, and I could see they were wire brushing light rust off studs, and seemed to be careful.
I go home to recheck everything, notice the right rear tire is put on inside out which I spotted looking at tread.
No problem; that was the first tire they put on, and made a normal mistake.
They reseated tire, and said they rebalanced, so tires work perfect like I expected.
I pretty much trust, but verify work when I get home.