I would have to agree, Zebrawood. Especially with the wavier lines. Check out the Seismic Bass in the Featured Custom archives couple months ago, super cool looking Zebrawood. One of the coolest tops I have ever seen, especially for an earthshakin' bass. I am by no means a wood expert, but I think that one is from quartersawn Zebrawood. Of course there is also Quilted Coco Bolo very beautiful and VERY unique, but I understand also frightfully expensive.