Subject: What is the effect of density or shape of a bowling balls inner core?

Bowling balls are being produced with different shapes and 
densities of inner cores.If the Outer shell retains the same 
properties(co-efficient of friction,total weight,balance and 
imbalance),does a denser core material in various shapes effect 
the way it react when rolled?The balls are rolled on lanes made 
of urethane coated wood or a formica type of synthetic and 
dressed with oils and lubricants in various patterns.The limits 
of imbalance are (1)oz on any or all sides of ball and (3) oz. 
on top of ball as it is viewed from location where it is 
gripped  I would like an answer to this question from someone 
NOT in the bowling industry.Thank you....Maury

Re: What is the effect of density or shape of a bowling balls inner core?