No welding spring steel. Welding isn't req'd to make them shorter anyway. Metal workers know how to heat this material, change the bends, and proper cool them to retain the temper. With a little luck the difference in length is 3 inches? Simple as cut at yellow and add a 90 degree bend at red. Done. All my vert parts are gone and I can't recall what the actual length difference is. I know the B-cuda vert spring length is 42 inches. Maybe cut off 5 inches and add two 90 degree bends? Its doable regardless.