the aiming preview is slightly approximate so sometimes the ball can land slightly outside its marked zone.
But mainly the aiming preview shows only the precision zone by its shape and the ball difficulty by its color, but there are some other stuff happening. Main one is the lost of control because incoming ball is too fast ; it happens mostly when doing a drops shot and sometimes some other slow strikes (including the safe strike when running forward).
"your nadal" is controlled by CPU or yourself ?
If you prepare your strikes late, the precision zone will always be huge. Also, if you have low precision skills, you need more preparation time to get that zone small. If you take more risks than your opponent, you'll also get more wide faults.
Red precision ball = complete loss of ball control because the ball is too difficult to play, so your strike can land anywhere (usually too long or in the net, depending of your current position on the court).
== Mana Games ==
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