Measure 3 time and still drill the wrong locations. Even after oversize drilling the holes for the set screws in the pitot tube mass, I had to cut off 1/2" and re-measure and re-drill the holes. Much better the second time. Debur and cleaned up the connect, as well as played with the connection fitting between the mass and the actual pitot tube. Considered the plumbing location and tried to layout the bends required for connection.
