The layout on it right now is not too bad.
Remember this ball is not snappy. It skids
in the front, revsin the midlane and has a
smooth backend. That is how the ball in constructed.
If you want it to roll more you might have to use a
4 x 3 or 3-3/8 by 3-3/8.
How much hand do you put on the ball and how fast do you throw it?