Where, exactly, does OP say anything about using the LATEST version of xx stick? Reread the post. He said that actual racquet and the PJ were DIFFERENT, CURRENT models- nothing about xx version 1.0 vs 2.0.
Twofold answer for OP's question: the player prefers that model, which is current and the manufacturer wants to market the PJ by associating it with that player- yes, that really is the answer to all these types of questions.
Twofold answer for OP's question: the player prefers that model, which is current and the manufacturer wants to market the PJ by associating it with that player- yes, that really is the answer to all these types of questions.