Can anyone explain how an extremely spinny second serve can "boing" long by a couple of feet. My main issue is netting the second serve, but sometimes for some reason the initial trajectory must be too much upward and it balloons way long. Can anyone demystify the factors that lead to the ball going into the net vs long. I feel like the excessively spinny second serve has inconsistencies at contact that vary more in varying conditions (relative to a more flat strike), to the point that the safety given by the spin can be offset by environmental variables such as heavy balls due to humidity (i.e. you can't predict whether the ball will grip or skid along the strings). Any thoughts on the topic are appreciated.