Thanks Puddin.
I think Niagara was right about the decoy teams on the Jet Boats. For each ride there is a 'family' of four just sitting in the back. But they are not anybody we would recognize.
One more thing: The Weasels were so far behind that they actually rode in the same boat (Leaping Lamb #5) as the Linzes. It was able to go back to its home dock.