MDF for table saw miter bar on sled projects?

Non-standard miter bar source miter slot bar One problem: My Craftsman miter slots are a hair too small, the measure a shade under 74, while the Jessem bar is right at, or a hair over, 74 miter slot Bar Clamps · C-Clamps · All Clamps · Drywall Accessories · Hammers & Pry Bars Miter Saws · Portable Table Saws · All Sawing · Shapers · Universal Accessories

miter slot track The jig either wiggles, or it is nearly impossible to push the jig through the slot I have a Jet table saw and have checked that the miter slot