Dennis,

Do you loft the ball much or do you set the ball down between the foul line and first row of dots?  Reason is that if you do have carrydown, you do not want to go too weak.  You still want a cover strong enough to bite through it.  Another question.  Is the ball speed at the pins or off your hand?  Reason is that a resin ball can lose about 2-3 mph from release to the pins.  So, 15 mph at release is way different than 15 at the pins.
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Steven Vance
Pro Shop Operator

If anyone out there is worried about the scores being too high, try duckpin!!