The one thing in the article that doesn't make sense though, is that the author (at the top of page 6) writes:

"Current wisdom is not to bond thru-hull fittings. It is one of the recommendations in the MAIB report on RANDOM HARVEST and the testing lab for the sailboat loss advised that in their opinion bonding would not have saved the fitting from failure. The water in a thru-hull is often stagnant inhibiting any benefit from bonding. High zinc content brass is susceptible to dezincification and stress corrosion cracking in stagnant seawater."

Some explanation of the contradictions in that paragraph would have been helpful.