SawStop's ZCIs which I have three, one for the dado cutter, are pricey. I have been using a filler to give a worn ZCI a fresh life time and time again for the past few years.
Edit: I've cleared the use of the filler with SawStop before using this method to make sure the material wouldn't trigger the SawStop.
Edit: I've cleared the use of the filler with SawStop before using this method to make sure the material wouldn't trigger the SawStop.