Bottom line, you're stuck with what Lionel decides to put in there. Lionel has a history of unpleasant surprises when it comes to sounds in their high end engines. I have a JLC Allegheny and Legacy Big Boy with whatever random whistle file was available at the time. It's a bit strange when their Lionmaster or Flyer offerings have more correct sound features. They had the edge up until maybe 15 years ago with reliable command control and sounds that had an easy to use interface. The aftermarket at the time picked up the slack with upgrade parts but now they are so far behind the curve. Seems like they just dumbed their stuff down to appeal to boomers and toddlers and no one in between. I was watching a random Loksound vid and the dude was demoing 16 different whistles! 16!