Customize the (spider or biscuit-bridge) resonator guitar sound with a Maple saddle for rich tone and the traditional vintage sound that only comes from hardrock maple. Replogle Reso maple saddles bring the time-honored dobro tone while providing the strength and volume of the traditional maple saddle. Reso guitars are infamous for intonation problems. Another Replogle innovation is to carve the saddle under the first two plain strings, and then smoothly angling the other four wound strings to greatly improve the intonation. The maple saddle requires final trimming and slotting.