Increasing the "x" increases, albeit slightly, the lateral stiffness of the system. Radial isn't really all that stiff. The bracing angle has little to no change - sure you get every other spoke on the opposite side of the flange but they still cross - making the average bracing angle roughly half the difference between heads in and heads out. In this case he'd be increasing his bracing angle.

Data shows the increase in stiffness with the higher "x" lacing, but that is still relatively small. Even on my high end builds I never build for a sprinter by using radial lacing in the front. Always 2X minimum. The feedback is as it should be as a result.