i have a chalk and an nvd. I know the nvd is a much stronger ball than the nv,(ok,i think).Any way my nvd was the strongest ball in my bag at 2000 with a 4 in pin under ring drill.My chalk,pin over ring at 4000 just gets stronger and stronger. The nvd and chalk comp each other splendedly and the nv imho would be a little down the line ,but with thr right drill should be able to compliment the chalk.
Would i pay 500 for either,any ball hecks no. Would i get another chalk at a reasonable price i sure would. Payed 165 for mine and to date its the most i have ever payed for a ball,but anytime i have been able to line up with it it has delivered as well as the nvd.Any way chalk is a beast nv comp chalk yeah maybe ,but 500 no way.
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my style, the art of bowling without bowling