Anyone ever use a Goncalo Alves Fingerboard for a fretless? I think it's an intriguing proposition, given it's hardness, coupled with it's relatively warm tone (not to mention it's availability). ALWAYS ACCEPTING that each tree, plank and board have their differences, and that the sum of parts is always a huge factor... I'm talking about using it on a standard flatsawn high-quality J-neck, bolted on to a P or a J body. I love ebony for what it imparts: (extreme articulation, loudness in the highs and lows), but find it hard to get all the warmth I want...it always seems just a bit hollow to me, as to my ear, it lacks some of the midrange. I actually love Indian rosewood, and I simply don't grind my boards up...it lasts just fine. But I've already got a perfect example of that on a J fretless. I'm doing a Brazilian rosewood build now, and can't wait. Goncalo (might) make a nice middle ground between Ebony & Indian rosewood, without being so pricy, and such a hassle as Brazilian. FWIW, I do like Pau Ferro...just looking for more tonal options.