It means your recovery course would be shaped like a racetrack, sort of a large flattened oval. After MOB
, you'd come around 180 deg, then steady, then another 180 turn should bring you back to Oscar. The "quick-stop" method is similar, except the first turn is always into the wind
in order to slow the boat and stay real close to Oscar.
For a Williamson turn, you alter course 60 deg (typically to stbd but could be either way), then hard over the other direction until you steady on the reciprocal of your base course, which should bring you back to Oscar.
I think the racetrack and Williamson turns have always been more suited to poweboats/ships. The quick stop seems to be the modern standard for sailboats, unless the wind
is screeching too bad for the jibe maneuver, then the figure-8 is used, even though it gets you farther away from Oscar before you return.
At least, this is how I teach it when I occasionally teach