WOODBURY - County Executive Ed Mangano (R-Nassau) is touting reform that he says has fixed the county's "dysfunctional" tax assessment system.Homeowners who successfully grieve their tax assessments will now get a decision before they pay their tax bills. The old system had residents paying higher bills first and then waiting for refund checks.Mangano says the new reforms will save the county up to $30 million each year, but county Democrats argue that his math doesn't add up. The Democrats say the reform won't even scratch the surface of the county's budget mess.Legislator Kevan Abrahams (D-Hempstead) says he believes Mangano should have applied the reform to the county's commercial properties, which account for 90 percent of all tax refunds in Nassau.