I suspect I’m missing part of the story. I’ve seen some of these fast boats at the Willy T and CGB before and they generally looked like a pretty fit bunch, but there’s (almost) no way they just came from PR. My only guess is that many of these boats are from the USVI and just hop over.
Also, a question, I saw online that the term “Puerto Rican Navy” was a term of affection. If it’s pejorative I’ll strike it from my vocabulary.