i've received a dulcimer which is playable, but i feel it may benefit from having the action lowered.
I'm familiar with what is desirable on an acoustic guitar, but all I have seen so far on mountain dulcimers is reference to a "dime" of clearance string to fret. I don't have any USA dimes, so maybe a measurement in mm or fraction of inches is available? I do have a set of "feelers" available.
it looks like I can pop out the plastic bridge once the strings are off, can I just sand some off the bottom? I'm not sure if the bridge is on an angle to adjust for string gauge, if it is I c