Rock:
I have no idea where your area is. However, geography may not be the best determinant for a "good gunsmith".
FWIW, I have had good luck with Turnbull Manufacturing Company. These folks do excellent work, they know what they are doing, and they "shoot straight with you".
As much as I hate to agree with the Brits [It only seems to encourage them! ;)] I have to generally agree with "the old ones" about preventive maintenance. Churchill recommended that a gun be sent back to the factory for service once a year. According to the folks at Turnbull, the service interval can be extended to two to three years unless about 20,000 rounds are fired or the gun is allowed to become wet before then.