Or, for 100 credits, one may buy all 3 types of upgraded balls (a 3-pack from each type). Each type of these golf balls really is played differently. After playing with nothing but "coloured" balls for the last few weeks, it was quite a shock for me today to test the new B-ES balls and having to readjust to their "decreased" = normal distances. Practically every shot (except putts) is affected. But, the backspin was fantastic! (Still, if the lowest possible score is your top priority, GI-D balls are the best option.)