+1Pete skjold said:Bubinga by all accounts should make a great neck . It is twice the price of maple though ( and good maple ain't cheap !) and heavy . I have used it as stringers and they work great .
Ovangkol is closely related to bubinga . It is also called shedua . As you know it was the wood that Warwick used to replace Wenge in the neck . It seems to work well to if you like that tone .
The stuff I have used has always been very stable . Like I said though it is heavy and it is more expensive . That is one reason I think you don't see it in mass use for necks .
Pete
Also, from my experience, it's also pretty brittle, which is a bit annoying when shaping necks (if you're doing it by hand), especially with figured stuff.
Oh, and regarding Ovangkol, Larry Davis from Gallery Hardwoods has mentionned (in his section) that shedua is in fact NOT ovangkol, but a very close species. I thought it was the same thing too. You can learn more here