I’m no storm expert but having had my boat struck when I was thirty metres away I would be cautious of anything that gives a false sense of security……….had we been in the boat I am sure we would be dead! I’ve read about jump leads etc but my advice would be get off the water if you think you are in the path of a lightning storm, you are a prime target!,racing or not……….(good subject for the bar though)….
From what I have read if you link the shrouds to the bailer you increase your chances of being hit as well as reducing your chances of death if you do get hit……….