Here is my newest miter spline jig. I had been using the sacrificial type, sometimes known as a fence rider.. Last week I threw away the third one. This style is non-sacrificial type as it rides in the miter slots and the project moves across the jig. It is easy to make and I saved some cash by not using T track for the stop. Just a dado covered with some 1/4" MDF and a 1/4" slot. I may or may not make another stop. I already had some material for the miter slots so the build went pretty quick.