re: New mitre sled

I just tried a small test. I cut 2 small triangles, one from each fence, then lined then up next to each other. I aligned then so the bottom of the triangle lined up that pushing your finger across resulted in a smooth joint. However at the top of the triangle I could feel one of them was taller than the other. Not perfect. I don’t know if I’m asking for too much. The triangles are only about 2-1/2" tall. Again, it’s very close but I want to know if there is a way to build the sled perfectly.