Ebtech Hum Eliminator - Crispy Or Extra Crispy?

[Michael Clark <mcl451@airmail.net>]

Hi,

Been doing a bit of looping live - Oberheim EDP, Vortex, etc.

Occasionally run into electrical problems at some venues.

Not an electronics expert.  

Been thinking about buying the Ebtech rack mount Hum Eliminator.  I
understand it eliminates the Ground, and as a result, Ground Loops.

Is this dangerous?  Could my equipment, and perhaps me, turn into an
impromptu light show?

thanks,

Michael