I drilled my radical guru at 45 x 5.5 x 45 and all i can say is i finally have a ball that i can throw inside on heavy volume.Not only does this ball recover extremely well in oil it continues to hook through the pocket .. I originally didn't have a weight hole in it but the backend was too big so i punch a weight hole right on my pap.. bang 299 2nd game with the weight hole.. i definitely recommend this ball to anyone looking for  a little more...