You do realize that the bowler in the vids is Leanne Barrett, one of the best women bowlers ever. Her nickname was "Boomer" due to her rev rate. Her lines in the vids seem to be aimed at showing ball motion geared toward league bowlers. I'm sure she could still "send it and bend it" if she wanted too. I agree that vids don't offer much in general but should be showing drill specs., lane condition and the like at a minimum.
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"I don't want to be remembered, I want to be forgotten"