Toxer:
The term "action" refers to the height of the strings above the fretboard. You may also hear the term "neck relief" or "relief" used. Same thing. Now, we don't use the metric system over here, but isn't 50mm the same as 5cm? That would be something like an inch and a half over the 12th fret. :?
My resonator strings are exactly 1/2 cm over the 12th fret. I read that as 5 mm. Is this correct? In any case, this is what I am calling "medium to high action." I can do both--slide and fingerpick--with my strings at this height above the fretboard.
John (Ivan, I believe..)
