It's not a myth that Kahlers hurt sustain. I've experienced it on every Kahler-equipped guitar I've owned (quite a few).
I haven't had much of a problem with the strings staying in relative tune, but it seems like every Kahler older than just a few years does not properly return to zero pitch. I think that's because the springs on a Kahler wear out faster. That can be fixed, but what a pain. Kahlers just have too many moving parts and are too fussy for me.
I haven't had much of a problem with the strings staying in relative tune, but it seems like every Kahler older than just a few years does not properly return to zero pitch. I think that's because the springs on a Kahler wear out faster. That can be fixed, but what a pain. Kahlers just have too many moving parts and are too fussy for me.