After reading many articles on table saw kick back, I decided I did not want to be the next victim so I bought the Biesemeyer 78-431 T-Square Anti-Kickback Snap-In Spreader (For Delta Left Tilt Unisaw). I removed the original blade guard and kickback device after one day of use. The blind spots were distracting and aggravating. When it came time to install my dado blade, there was the factory splitter. Aggravating to remove and more aggravating to install and align. Without completing the re-installation, I worked for a few weeks without both.  MUCH nicer and no aggravations!