My girlfriend and I have been in a couples league for about 4 months and she has been using a house ball. I wanted to make sure she wouldn't lose interest before I went out and bought her a ball so it wouldn't just sit in my locker (and to make sure she was still my girlfriend, haha). I am now convinced she will use the ball because she enjoys bowling. She gets frustrated because it is hard to be better than a spare bowler with a house ball. I just recently purchased a more reactive ball and have enjoyed the small spike in my average but I bought the ball that the owner of the lanes recommended for me. I have no reason to doubt his judgement but would like some outside opinion on what type of ball to get. She feels most comfortable using a twelve pound ball. Any advice would be appreciated, sorry such a long message. Thanks!