Gonçalvo Alves! I really like the look of spalted woods, Beech, Buckeye, etc. But my experience is that they tend to be soft. Gonçalvo Alves on the other hand is extremely hard and the natural oils in the wood allows it to be polished to such a high sheen that often finishes aren't necessary. Besides when Smith & Wesson stood for the finest in sidearms, Gonçalvo Alves was their first choice for grip material.