well, that rules out that possibility. at least you have found a good, legitimite shop, especially if they invite you down in the pit to look at the problem, that way you know they aren't BSing you.

I should have known that at the first machine shop I took my engine to. they wouldn't let me in the back because "their insurance won't allow anyone back there, and won't cover anything if I got hurt"

the new shop gave me a grand tour when I walked in the door!