I personally do not see any great benefits. Perhaps, it would have effect if I could give valuable prizes (for example 100$ in cash) to my PSA, for recruiting at least 3EA2. If the rewards are small, and they usually are, it's just fun for my PSA-s.
I know everyone like to get something for free, but only bringing new EA2 gives results and earnings.
I personally won a prize from my sponsors, but it did not help me to recruit new EA2. I have to continue to work on my own but that's business.
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