Yes, pretty stuff and it bends easier than any wood I've ever worked with. Polite and it goes limp after a little heat persuasion and just surrenders. Bend me! Almost like plastic. Must have something to do with all that oil... As far as allergic reactions, I have had no problems... yet. But you see, allergic reactions don't happen on initial exposures. The initial period is called "sensitization". After repeated exposure, the immune system then kicks in after a period of time and you start to get problems. The key to not getting sensitized to it and limit your initial exposures. I found the following quote on the web which seems to sum it up:
"There are two types of wood turners, those who are allergic to Cocobolo, and those who will be!"[/QUOTE
The very first time I worked with cocobolo I tried to hand sand a rough board into a banjo fretboard. After 10 minutes I went home with a terrible headache that lasted the rest of the day. No sensitizing necessary. That was over 30 years ago. A dust mask would have helped, but who knew?