Larry Tomczak's departure from the movement. Although reconciled with C. J. Mahaney in 2011, Tomczak earlier described the parting of ways with Sovereign Grace Ministries as "an unbelievable nightmare" during which his family "were threatened in various ways if [they] did not cooperate with [PDI/SGM]... A letter was circulated in an attempt to discredit me and to distort the events surrounding my departure." Other notable charismatic figures, such as Lou Engle, founder of The Call prayer concerts, and Ché Ahn, pastor of Harvest Rock Church in Pasadena, CA, also ceased to be formally associated with PDI during this period. As of 2008 the group identified itself as "a family of churches passionate about the gospel of Jesus Christ... with a strong doctrinal basis that is evangelical, Reformed, and continuationist." This move towards Reformed (or Calvinist) doctrine is illustrated by Sovereign Grace's partnerships with Reformed theologians--such as John MacArthur, Mark Dever, and John Piper--in events like the Together for the Gospel Conferences. In the summer of 2009, Detweiler, who had left the SGM board in 2009, released a series of documents detailing numerous grievances with Mahaney, including concerns about Mahaney's leadership style. On July 6, 2011, Mahaney announced that he would be taking a leave of absence as a team reviewed charges brought against him of "pride, unentreatability, deceit, sinful judgment, and hypocrisy." One of the purposes for this period included reconciliation with former SGM ministers. Larry Tomczak reported that Mahaney had gone out of his way to rebuild their relationship after 13 years of estrangement. On January 25, 2012, Mahaney was reinstated as president of the organization by the board after three review panels found no reason to disqualify C.J. from his role as President, or to "call into question his fitness for gospel ministry." Early in 2012, Sovereign Grace Ministries announced their intention to relocate their headquarters from Gaithersburg, Maryland to Louisville, Kentucky, citing Louisville's lower cost of living as well as the growing connection with the Southern Baptist Theological Seminary in town. Some critics have suggested that the move may have more to do with the fractured state of the organization's relationship with the SGM flagship church, Covenant Life Church in Gaithersburg. Later in 2012, the movement's former flagship, Covenant Life Church, departed from SGM, a decision supported by an overwhelming 93% of voting members. Additionally, the Sovereign Grace churches in Indiana and Altoona, PA, Sarasota and Daytona