I had an '80s Hondo, that had a Kahler, but, it was stock...+1
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Kahler Flyer on my '83 Hondo II Pro DC.
Originally installed by someone with absolutely NO wood working skills.
I wound up cutting more wood out, gluing new wood back in, and re-routing to spec.
Luckily, all the Frankensteining is hidden underneath the Kahler.
Mine was a suoer strat type, w/ pointy headstock... jet black paint...