it all comes down to trust.
Everyone makes mistakes.
You do something 1, 000 times a mistake is probably gonna happen.
Nascar guys make mistakes week in and week.
Trust. Does anyone really care about your stuff as much as you do? There might be a few places like that left. But probably not as many as there should be. I trust very few people to do any work on my stuff. I always do as much as I possibly can. Even if It's something I've never done before. Will I and do I make mistakes? Yep. But at least I know I only have myself to blame, and not some shop that may care less....After they've taken my money. Even more important, I enjoy it doing the work, It's one of my hobbies.