You can nitpick, but the important part is your transformers connected to the same piece of track MUST be phased correctly. A new hobbyist probably has no idea at all of the importance of proper common source transformers having their secondary's in phase. Yes, you guys are correct, the U post is not always the U POST! A even better example of this is the early CW-80 transformers. U on them is not like U on a ZW or Z etc. Lionel was given plenty of timely advice to be able to correct this, the CEO at that time just chose to ignore it.
They had in their possession a 30 page detailed engineering report including graphs, heat transfer curves, and a slew of other data supporting the claim that this transformer' electronics would fail like crazy. Guess what? The electronics did fail like crazy. John Brady never ignored my advice again!
