12-6 slider

my take on it, is that anything that is hard is a slider and anything that is soft is a curve. usually, the way the pitch comes out of the end would be important, if it starts by going up then breaks, its a curve if it starts on a straight plan and breaks its a slider.

i like to see it this way, your CURVEBALL should be around 15mph or slower then your fastball and yout slider should be around 8 mph or less then your fastball.