Be careful putting that much voltage on the rails. If you have any newer Legacy or LionChief Plus locos sitting on sidings, etc., the manuals warn against exceeding 19V. It seems like after many years, the standards have changed.
Frankly I would like to see Lionel, MTH, etc. go to a 24V standard as LGB uses. My own experience with 24-volt motors suggests that there are performance gains to be had.