If they don't need it, they don't need it, but I wonder if there would be any other way do the secure the rocket without requiring welders to board the barge.

If they don't need it, they don't need it, but I wonder if there would be any other way do the secure the rocket without requiring welders to board the barge. Coat the deck with solder and put heaters in the feet to attach? A robotic Roomba-style welder? Giant arms that rise up to clasp the rocket regardless of the exact landing position? Fun to think about...