I have thrown both The One and The Big One. There is a difference between the two balls. The Big One is 5-7 boards more than The One on the backend. The Big One hits harder on the backend than The One. I have thrown it on a few different tournaments shots the last two weekends. The One and the Big One is two great balls that will compliment each other on the lanes. The big One comes 4000 grit Abralon finish, and The One comes 4000 grit Abralon factory polish finish.