I have had several ebonol necks and I am just not a fan of them anymore. At first, I love the "mwah" they are capable of, but after the strings finially scratch the surface, which for me took only a matter of a couple of months, the scratches appear to be white in colour, and while they can't be felt, to me they look hideous aesthetically and eventually will be visible from a distance. I am very OCd about keeping my basses in prestine condition, so these wear-and-tear effects of ebonol drove me nuts.
As far as mwah goes, I agree that ebonol has better mwah than a natural wood, but if you finish that wood with epoxy, then they're very quite similar. Unfortunately, there is no sort of finish, that I know of anyway, that can be applied to ebonol since is really a sort of compressed resin.