I don't know what to say. That might work on the Futures, even Challenger, circuit, but ATP? Even a top 50-100 would hammer those. Imagine what Rafa would do.
A fun gimmick, but it won't play in the adult world of tennis.
The Chang one against Lendl was pretty memorable. Chang did just about everything he did to unsettle Lendl in that match - moonballing, standing right up to the box on receiving serve... anything to unsettle Ivan, and it worked.