Should nadal learn the service motion of Goran Ivanisevic?

Upon having a bigger serve that helped win the US Open, I think he should tweak more his towards the Ivanisevic serve to make it more potent and lethal. This due for the following reasons: 1. They are both lefty. 2. They toss the ball low 3. Closed stance in their delivery 4. They put lots of action to... show more Upon having a bigger serve that helped win the US Open, I think he should tweak more his towards the Ivanisevic serve to make it more potent and lethal. This due for the following reasons:

1. They are both lefty.
2. They toss the ball low
3. Closed stance in their delivery
4. They put lots of action to ball.

The only difference I think is Ivanisevic's serve has better disguise. But if Nadal will learn Goran's serve, he will be close to unbeatable. What do you think?
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