angular one with assymetrical flip drilling unless you have soft speed, contact Jeff Ussery for exact layout with your specs. The flip drilling makes all higher mb balls for me work well, if i put mb too strong and pin to weak the one series does not work worth beans for me.
Contact allstar bowling or use the bowling.com link to order off the net, most shops will wheel and deal on the one series because alot of distributors are running buy 4 get 1 free deals.
