That there is too much friction between the ball and the lane, which causes the ball to hook early, causing it to lose energy and roll out.
When you make a shot, the ball goes through three stages Skid, Hook and Roll.(which is harder to see now a days, because the balls transition through the stages faster.
Skid-
Skid is when the ball is spinning (rotating) perpendicular to the direction of travel. Which causes the ball to hydroplane on the oil that's on the lane. Like a car tire sliding on wet pavement.
During this period it is storing energy, to release it when it hits the dry. To make that hard turn and hit the pins hard.
Hook-
Is when the ball starts to come out of the oil and encounters the friction of the dry lane. It then stops skidding and starts to change direction and go into a forward roll toward the pins.
This is when that energy starts to kick in, it's like spinning your car wheels. They spin till they get a grip on the road and the car takes off.
Roll-
Roll is when the ball is rolling parallel to the direction of travel, a forward roll. The energy is falling off and the ball starts slowing down.
If the ball is too aggressive, the hook and roll will happen to early (Burn up). So by the time the ball hit the pins, it will have lost most of its energy and will carry weakly. Or it won't quite make the turn toward the pocket and leave a washout or something.
That's the thing a lot of bowler's don't get. They think they are bowling on heavy oil because their ball isn't hooking and they want a stronger ball. But a lot of times they are bowling on a dryer shot and they need to use a weaker ball or one with more skid, so it retains energy longer.
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