This week, I contacted makers of my primary regulators, Atomic and Scuba Pro, about sending the regs back to get factory service. I have had bad experiences with local service. For example, the local Scuba Pro dealer's tech sent me off on vacation once with a defective 1st stage.
Atomic was great--I talked to the service dept. guy, he gave me the address, prices, and an expected turn-around. It was about as cheap as doing it locally.
Scuba Pro/UWATEC, on the other hand, would not deal with me directly. They simply said (via email) to go to a Scuba Pro dealer. When I made the point about the last time I went to this shop for reg repair, they said they would service my reg--but I had to submit it through a Scuba Pro dealer's dive shop.
I had the same problem with them last year with a UWATEC computer that is about to run out of battery life. That, plus their exorbitant cost with the dealer's add-on, helped me decide to just throw the computer away when it ran out of battery. I bought another computer with a replaceable battery and a regulator from an ad on Craigslist for about Scuba Pro's cost of replacing the battery on my old computer.
Has anyone else had better luck with Scuba Pro?