I don't know about the waters you sail in, but cruising Lake Michigan, those pigs make a significant difference. Two years ago I traveled without them, and felt uncomfortable. The difference was that noticeable (not that I was in danger, but that the boat was so much more sensitive and less solid).

I have been concerned that if the boat ever rolled, those pigs would be a dangerous liability, but then what is the likelihood of rolling, unless you plan to cross the ocean. I do know that the boat can lay on its side without the pigs causing any problem.

But then, if you had the lead, you might prefer to sell it and with the proceeds get two new nameplates . Lead brings good money today.