Hello everybody. I have been bowling since I was 12 and am now 19. I have had a ridiculous amount of injuries, school work as I am a full time student, work, and even a surgery that prevented me from bowling for at least a year. I've just decided to start bowling again recently and am more interested than ever. I have decided to get a new 15 lb (I used to use 16 lb balls) Motive Cruel LE and I have found a layout that I like.
http://www.youtube.com/watch?v=nrHbNqm3ImY It appears 2 minutes into the video. The layout is 70x70@5". Can someone specify what exactly this means?