This is awfully late and I'm sure you've already found something for that tulipwood
fretboard by now, but I just have to tell you about a remarkable product that I use quite a bit. I'm pretty sure that with all the serious woodworkers here, some have found out about Renaissance Micro-Crystalline Wax. It's the slickest stuff I've ever found for polishing. It might be good for initial finishing or maintenance on a light-colored fret board. It was invented for museums and restorationists of all types, and used all over the world by the real pros. Yes, it's expensive, but since it's used a drop at a time, it goes a LOOOONG way. It will protect silver and brass from tarnishing, put a gorgeous patina on wood, leather, ivory, and whatever. It resists finger prints, doesn't darken or stain wood, repels water, DRIES INSTANTLY, can even be used on paintings, paper, whatever. You should read up on this stuff at the every least. It's phenomenal. It contains no silicone or other finish repellants. Okay, I'll shut up before someone accuses me of owning stock in the company.
Hope this finds you well and productive.
c:
Buy the Renaissance Wax - Furniture Wax Polish - Solvent Based - Clear - 7 oz (200 ml) for sale online from Woodcraft. Visit us to order online or find your local Woodcraft store today!
www.woodcraft.com