How do you account for throw? I don't play snooker so I don't know. Do you hit every shot pretty much the same speed?
Good question. There would have to be adjustments made to the perception, the sweep, or the final CCB solution. And these adjustments would be based on individual experience/knowledge. Either that or every shot is executed with the same speed, preferably using stun shots as Stan demonstrates in his clips.
With any other method of aiming there must be some adjustment to account for throw and varying table conditions.