A quick glance rarely reveals trapped energy, micro-lows, and hidden crowns. Train your eyes with a fog board or dedicated line board, moving light slowly to watch reflections bend and return. Sketch the dent’s perimeter, mark tension areas, and decide the sequence. This short investment saves hours of chasing highs and guessing at stubborn lows later.
Panels remember their stamped shape. If you attack the center first, compressed crowns resist and bounce every push back into new highs. Work edges and crowns methodically, opening the structure so the center can relax. A mentor once said, “Free the boundaries, and the middle will follow.” That principle turns difficult impacts into cooperative, predictable movements.
Poor lighting hides mistakes until the sun exposes them. Position your light to exaggerate distortion, not to flatter it. Adjust distance and height frequently as the dent changes. Cross-check with a second light or natural reflections from nearby objects. Treat lighting as a measurement tool; when it is honest, your pushes become confident, repeatable, and clean.
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