The bridge on my Kentucky mando is already at the lowest position, but I think the action could be even lower. I gather this means I must grind/file/sand the bridge down, but I don't know where to do it, or the best way. Should I sand the part that rests on the soundboard, or the two small areas that sit on top of the adjusting screws? Or even the top of the bridge? Just buy another, lower bridge?
I'm pretty handy with wood (see www.busmanwhistles.com) so I know I can do the job-- just want to know the best way. Thanks.