Sometimes in life the answer is so easy, you wonder why the rest of life is not this easy. Wide World Imports. Truth is, I've never used any of the other rebuilders, but I can't imagine anyone else doing a better job with the technical aspects of rebuilding shocks or as importantly, the customer service part of the deal.
There aren't many folks who can build a business around a narrow segment of a limited industry. Whether rebuilding gauges, distributors or shocks, those who create a loyal following due to their excellent workmanship deserve our attention.