First of all .. I rely do like Lionel's TMCC .. I have more than a half dozen engines with Command Control and only one with Odyssey .. a little frustrating at the moment
I was reading my Dec-21 issue of CTT and saw a letter to the editor from Nick Commando of Manorville, NY .. there is a lot of merit to his comment about past history variations of trains, pre TMCC etc.. see attached .. I do have a lot of non TMCC engines