I have a 13 year old lefty who uses the curve as her "go to" pitch, even when she gets down in a count. It has a late break. It's not a strike out pitch, but she can get to an 0-2 or 1-2 pitch very quickly. The problem is her rev spin is only 12-14. When we worked yesterday, she could minimize the use of her thumb or tuck her forefinger and quickly get the spin up to 16-18 but the ball didn't have a late break. Do we keep working on things that increase the spin or stick with the nasty late breaking curve with less spin? I'm not sure if the idea of more spin, more break is holding true for us...