Effective May 20, 2012 chart May 22, 2012 4:36:05 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Spidey on May 22, 2012 4:36:05 GMT -5 Effective the chart week of May 20, 2012. All formats will go under revision. Expect spins and audience to shift upwards or downwards depending on the format.