First, I'd like to apologize for barraging you guys with questions. I just want to make sure I do it all right. I promise to post pictures of my build! Anyways, I plan to use Siamese Rosewood for a fretless fretboard (because getting anything else in Thailand is too expensive), and I was going to use some contrasting wood for the fret markers. The first thing that came to mind was Rubber Wood, because that can be easily acquired, and it's got a light color. I know this stuff isn't used for instruments, but would using strips less than an eighth of an inch thick harm anything? Thanks, Rick.