Kirby did some work on a Martin/Sigma guitar I purchased at a yard sale recently, and I was very pleased. He replaced the plastic nut for one made of bone and also set the action, making it very playable.
As a professional musician I need quality work done with a fast turnaround time. Kirby pulled through by fixing my Takamine acoustic/electric within a few hours. Fast, friendly service is not just a motto. It’s the way Kirby does business.
https://www.stevekercher.com/about