According to the description of Beyond Human on the Eden Studios page it will have notes for use with Classic Unisystem.


As for Essence not all abilities use Essence in Classic Unisystem from what I have seen. Psychic Powers do not, if I recall correctly. Only Magic and Miracles, if I recall.
--
Mike
"We can only hope this is the last footwear to fall."
--Thor, Stargate: SG-1 - Unnatural Selection