AFAIK, the fakes are never in the Spoiler shape.
Most fakes with the rub-on lettering seem to be very poor P-bass copies, and there's a picture of a super-strat model here on the club that one might mistake for a California Special - if not for the lack of build quality.
Another hint is that there are only two Alembic models that actually had the model name on the peghead - earliest Spoiler with the decals, and 20th Anniversary with the script in bronze - whereas the fakes have the model name printed.
(Message edited by adriaan on January 31, 2007)