Hi bowlers, looking for a recommendation from you all for my 15 year old Cranker son. Right now he has a 4 ball arsenal with a gaping hole in the middle. He has an original Virtual Gravity, a polished Mutant Cell, a DV8 Misfit, and a white dot. Looking for something that fits smack dab in the middle. Not manufacturer specific, so didn't post this in a specific ball section. Recommend away!