“This year we’re taking a great thing and making those tricks even better.”All in hopes of making it rain new and renewing members, plus additional gifts from other regular contributors. 4/20 SPECIALAnd then there’s something else to stir the pot, so to speak, and that’s special programming. “A year or so ago, there was talk of a ‘smokin’ hot radio’ theme,” says host Thomas Greener. Following the political folkfest, things get political on “The Undernews” with Sacramento peace and social justice advocate Jeanie Keltner at noon Wednesday. Copies of the book and tickets to a Gray/Ardagh May 7 event at the Nevada Theatre will be available during the fundraiser.