I ask this because I throw my first ball about 14.5 mph. I throw my spare ball around 20-21, and if Im throwing at splits about 23-24. I fell apart this morning in league and had a 210 first game with a open in the 8th and 9th frame, and then shot 135 followed by 140. The last ball in my 3rd game was pocket and I left a 4-7 (Im right handed). I picked it up, but I threw my ball 27 mph. I think my fastest if I remember right is 30-31.
So how fast is your first ball, your spare ball, and how hard have you actually thrown a bowling ball before?
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Mike