Just put some Energizer Lithiums in mine. Makes the blade brighter, but nothing else.
*Shakes head* Can't see makes this thing so good. Still has those dark spots and NOW this is what appears to be a white hole in the foam. No dueling with this guy. Afraid he'll fall apart. Owned 3 with a MIB also and they all seem to be pieces of PooDoo. My Anakin's FX kicks tail. I like Anakin's, it's my best. However, Mace's is my favorite as of late.