OK, I did a search on this, but didn't find much info. I am thinking of getting a Conklin GT-7, and if I like playing a 7, then either getting a second GT-7, or a BD-7, or maybe even having a Roscoe 7 built. If I do any of these things, I will wind up defretting a GT-7 and using it for a fretless. I have never had any experience with purpleheart as a fretless fingerboard. How does it sound? How durable is it? Will it hold up unfinished, like pau ferro or ebony, or will it need a hard finish? I prefer to use stainless steel rounds on a fretless. Thanks!