Just simpletons call it hand-eye coordination. The masters in the discipline like to refer it as eye-hand coordination, as they know that it is the eyes that do the work and lead, the hands just just follow. Thus, the key to training this is to focus training on the eyes, as being athletes, having good hand function and ability is already a given. So how do you train ones eyes to become a master at eye-hand coordination you ask? It is simple, to master and truly appreciate the gift of sight, one must fully understand what it is to see. Hence the only drill you have to do is to simulate blindness, either by but not limited to blindfold, having a severe allergic reaction, bee stings to the eyes, pinkeye, having your eyeballs surgically removed, or only being in rooms/environments where it is pitch black. This will heighten all your other senses including sight, as not being able to see for an extended period of time will give you SUPER vision once you are able to see again, everyone knows that.. duh.