Slipknot/Stone Sour axeman Jim Root will be skipping the Sour's upcoming tour dates to focus on the new Slipknot studio record. According to the official Facebook announcement, the decision comes as the closest thing to win-win situation. As for the temporary vacant spot, Christian Martucci was confirmed as the fill-in guitarist. "With an impending Slipknot album on the horizon, Jim will not be touring with Stone Sour this winter," the announcement reads. "Everyone involved is okay with the decision and our mutual friend Christian Martucci will be filling in on guitar. It was a difficult decision, but as the fans have wanted another Stone Sour tour and Jim had responsibilities to the writing process with Slipknot, we feel this is the best decision where everyone wins." When it comes to the new Slipknot effort, the band confirmed plans to enter studio in January and hopefully have the record released during summer of 2014. "It's really dark, there's some really good esoteric stuff to it, a lot of good melody without taking away from the heaviness," singer Corey Taylor told Blairing Out Show about the new material. "It's gonna be pretty rad," he added, describing the tunes as "'Vol. 3' meets 'Iowa.'" The latest Slipknot studio effort, "All Hope Is Gone," saw its release in August 2008 through Roadrunner Records. Stone Sour unleashed the second part of their "House of Gold and Bones" album on April 9, also through Roadrunner.