There are several methods of correcting for eccentricity or out-of-roundness during straightening using this machinery. Some common techniques include adjusting the pressure or tension applied to the material, using specialized rollers or dies to manipulate the shape, employing heat to soften the material and make it more pliable, and utilizing computer-controlled algorithms to calculate and apply precise corrective measures. These methods help ensure that the material is straightened and brought back to its desired shape with minimal eccentricity or out-of-roundness.