I used to use the criss cross system for banking balls,and it seems like their was a way to use it to figure out the exact contact point on the rail for kicking at balls also. Anyone know how to use the criss cross system for kicking at balls across the table. The criss cross system is pretty acurate for a one pocket shot where you use pocket speed to lag balls to your hole,but it isnt perfect for making balls,but it does get you close, the human element is always a hard variable to control. Once again, this might be a good question for Bob Jewett,hes the science guy of pool. BTW is Robert Byrnes still alive,hes got to be 80 i would think.