I like cocobolo, but the biggest reasons that it fell out of favor are twofold.
1. It shrinks, and pretty much cannot be stabilized because it leaches quite a bit of oil over time, darkens just like many other woods as well.
2. It, like desert ironwood and many other woods, can cause violent allergic reactions, and with prolonged exposure to dust over time is practically guaranteed to do so....and once the body develops the intolerance to the material, simply handling it can cause skin reactions.
I like the highly figured cocobolo that is black and brown swirls....the wood you used on your bowie seems like a mix of heart and sapwood, and I have never cared for that combination. The overall shape of the knife is lovely.
Best Regards,
STeven Garsson