Hey Loose,
I really can't describe it better than my fellow "staff" member.
Characteristics of any ball is that a pin out will go longer than a pin in before it reacts. It boils down to simple "imbalance".
Imagine having 2 controlling weights in a ball(pin&cg), if the weights are separated apart (2-3) inches, this would create more of a wobble effect in the ball. One weight would move, then the other which helps create more imbalance. More imbalance creates wobble, more wobble creates skid.
Now imagine the 2 controlling weights set right next to each other(pin 0-1). Regardless where you put a grip to this, the weights are going to work in unison creating less wobble or "imbalance". Less imbalance allows a ball to get into a roll sooner.
This is why static weights (pos side, finger, thumb..etc) were so important in old balls without weightblocks. Other then the pancake top, the side weights helped create "imbalance" in the object to help make it wobble and create skid then hook. Drill it over the label or cg and the ball had no imbalance so it rolled early and even....hope this helps or just give me a holler.
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Rick Leong
Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff
Vise Inserts Staff