I am looking for 2 more balls to close out my arsenal I have a 715A that is my strongest ball it is out of box condition. Then comes my Green gargoyle it is 1000 abralon and polished it is my middle ball and then I havea venon 4000 abralon and polished it is my weakest. Now about me I am a Rh bowler with 425-450 in the revs dept and I throw approx 18-18.5 mph. Now what i am looking for is to fill the two ends need A oiler ball and a dryer lane ball please I am open to suggestions so please everyone looking for your opinions.