Just drilled A Sharp Noize. Drilled it 55 X 4 1/2 X 40. All I can say about this ball is WOW. I have ahd it for 2 weeks and have not shot under 700, including bowling on the Viper Pattern. 810 already and have had the front 9 3 times with this ball, including a 298 with a pocket 7-10! This is my new favorite ball. It hits the dry and doesn't over react and also cuts through the oil and carries like no polished ball I have seen! A must have for any aresnal!!! Any questions you can email me at nicedome@new.rr.com