This is a guitar world now of changing your own parts. Players mistakenly think they are experts when they change a part and it works. In a perfect guitar world that happens. As you know it's not a perfect world. We do it all. We're not simply "parts changers" but Luthiers, techs and craftsman. We build from scratch and refurbish used guitars as well. Craftsman are no longer getting into the fields of Art in Industry, refurbishing or woodworking. Luthery skills are not taught in schools.