Your given specs do not help in the respect to the questions asked.
1) PAP measurement
2) ball speed in mph
3) rev rate as in revolutions per minute
4) what tpye of ball are you looking at purchasing
5) exactly what condition are you going to bowl on,light patern, med patern,heavy patern
The more accurate the information you give the better response you'll get.
We all just do not want to misinform you, thats why no one is responding.
Also do not demand help, ask for it in a way that is on behalf of the people your talking to.
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X's for show, /'s for dough
ROTO GRIP KING OF THEM ALL