Thanks for that, JGads, I appreciate it. I guess my understanding of a heavy ball is power (or speed) + spin. So, to be clear for my understanding, if I'm a top-spinning baseliner and I hit with the same technique and racquet head speed with both racquets (which is a function of SW and static weight right?) the pure drive will necessarily produce a heavier ball right? So the TEC315 is really ice cream for flat hitters?