He just threw it every now and then..It wasn't a super concentrated effort but you could see he was trying to do something with it..
He would throw his world beater for a while in practice and then throw the plastic straight down the left side for 2 or 3 shots.. then go back to his world beater.. and then back to the plastic for another couple of shots.. He wasn't trying to practice picking up pins either..he was just tossing it..
He used the world beater during matchplay
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18 mph,350 rpm,PAP 5 1/2 x 3/8up, 10-13 deg axis tilt, varied rotational axis deg.. usually 45+
HighGame 300 x 5, High Series 808
Book Average 220,PBA Xperience 193