This is my cousin's shop. They've been in business almost as long as I've been alive and they know what they are doing. They are not incompetent in the least.
But, you did come on here asking for advice. There are those with experience in a different direction.
Hell, I've been doing it for 25 years. I still run into problems and ain't afraid to admit it and ain't afraid to ask for advice, as long as the problem get's solved. And anyone who knows me knows that I ain't incompetent when it comes to twisting a wrench.