Duke,
Don't get rid of it.Use it as an experiment ball when you get ready to go to #14,if and when that becomes necessary.
I once bought a ball off of eBay that was supposed to be #16.When I got it weighed,it was #15.I had it redrilled with a strong drilling,and it worked great when I played it fairly straight.The light weight let me keep my armswing free,and the strong drilling overcame the ball speed increase.
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Chris
JTTDB---Just Throw The Damn Ball
Don't "think"---that ball isn't in your bag yet..........