Seattle voters are being asked to take a big leap: Should they vote to create a Seattle Park District, with taxing powers and run by the City Council . . . or rely on levies which have left a $267 million maintenance backlog? As an umpire, coach and avid softball player, Seattle paralegal Michael Maddux used the subpar condition of several Seattle Parks playgrounds as he sought to persuade a couple dozen Rainier Valley residents to vote for a Seattle Parks District.