After having someone help me cut up 6 sheets of MDF for cabinet doors, it was pointed out to me that the rubber edge (splinter guard) on my tracks was worn so it no longer offered the zero clearance fit intended. Worn by almost 1/16". I was amazed how easy it was to change out the rubber strip. I have a Grizzly track, but generic strips work fine. https://www.amazon.com/dp/B08Q39MJHP...roduct_details