The engraving on the side "literally" doesn't have any effect on pin carry, but the core shape does. RG's and Diff's only tell you the ball motion, they don't tell you the energy created by the core. Think about it, you can have a core that is shorter and less dense with a certain RG & Diff. Now in order for a taller/bigger core to have the same numbers, the bigger/taller core has to be more dense. Now if you spin/rotate both objects with the same tpm's, the bigger/denser core is going to generate more force and hit harder. They both might hook the same, but the heavier one will generate more gyroscopic inertia, turning into a 17lb. ball vs the normal weight of the ball and/or a core generating less inertia. That's proven physics, but the USBC "ball motion" study doesn't talk about this and/or have any calculations for different shape cores. The bottom line is, this is fact..!!
