One Way to Square Rail & Rip Fence

I have a squaring stop that runs the length of my front SME. Many just use stop blocks but the same method could be used. Previously, I used the 5-cut method to fine tune my rail to the squaring stop. I recently bought a Wixey 8" digital protractor and thought of using it to align my new rip fence and to check the rail.

First I set the digital gauge to zero against my TS wing (first time I used the TS in a while ). Then I checked it against my Incra square:







I took the anti-chip off the rail to get a good surface to measure off of. I used my calipers to make sure the distance from the saw guide rail and the edge of the rail was the same front-middle-back. It was perfect! Then I took a protractor measurement:




Hey it read 90 deg.!


Then I adjusted the new rip fence to 90:





I have a question too. The adjusting set screws in the rip fence are pretty loose. Should I just put some tape or wax over them?


Thanks,

Mike