But has anyone completed a solid course on automatic gauge control and flatness systems that goes beyond basic mill operations? I’m on a 5-stand tandem running X-ray thickness gauge and work roll bending, trying to pull our 2-sigma under +/- 2.5 microns on 0.30 mm strip. Looking for concise online or 2–3 day modules on loop tuning, sensor calibration, and SPC that translate directly to tighter tolerances.