Hello Samuel Mineo,
I think that you don't have to convince your PSA's to become TC Wave3 member, all you should have to do is inform them. Provide them all the information about W3, and they will all become a members. You could also send to some of them $2 Gift Certificate,
and show them that you care. In my expiriance, nobody denied membership in Wave3.
I really hope this helped you a little
Good luck
