I've been throwing 16 since I started bowling, but I just bought my first 15. I've been having issues with my wrist for the past few months so, I've shortened my span a bit when I bought my Tsunami and since then I bought a used SCB that is 15 to try and see if that helps more.
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Tsunami H2O
Super Carbide Bomb
Teal Buzzsaw
Purple Buzzsaw
Ebonite Zebra 4