Welcome Lemontérégien. I am a slightly different three rail modeller in that I model the Southern Region of British Railways with some of the (dummy) third rail electrification in place, and more to lay. In a similar vein, I have third and fourth rails for my London Underground tracks.
I do dabble with European HO stock as well, but all of my layout electrics are 2-rail DC/DCC.
I do dabble with European HO stock as well, but all of my layout electrics are 2-rail DC/DCC.