I just received an Artillery Arsenal and need advice drilling it.First let me state the reason i got this ball is because the center i bowl in is putting more oil out on the lanes for our summer league and i am having a hard time getting the ball to the pocket untill the middle of the second game using a big rig diesel drilled 41/2 by 4 with pin above ring finger.Age is 64,pap is 41/4 over and 1/2 up,right handed,speed is 15 mph,i play up ths boards but can belly a few boards if i have to.Thanks for your help.