Ray,
Yes, the angle at which lumber is cut from a log will make a dramatic difference in the appearance of the wood grain.
However, the zebrawood slab on the coin side of your 62 Polar looks to my aging eyes as though the grain is a little spalted.
As a lifelong amateur woodworker, have cut numerous slabs from logs for use as lumber. Over the years have noticed spalted areas on several logs, especially maple and hackberry cut in this area.
Obviously, have never cut any zebrawood here in Nebraska and know nothing about the probability of spalted zebrawood, but have seen some images on the internet...
Such as the interesting grain in this unique Spalted Zebrawood 7 String Guitar ...