Rookie balancer mistake

Rusty, the old design fluidamper did require special pulleys because of the thickness. They have since redesigned it and they accept stock pulleys now. Yes it was a real pain in the butt getting the correct pulley and your options are very limited.
I do recall mic'ing and honing my first one to fit. The second one I got fit good out of the box.
I agree on the anti-seize.