So I opened the .bin for the smoke stack and saw that Maxparticles was still 600, so I added a 0 to make it 6000.
Happy day!! NOW I get the smoke puffs that Lionel would be proud of!
Thanks a mil for the hints folks. Now I just want to see if I can get the "wheel rumble" that my B&O and PRR wagons have on at least the tender, if not the loco too. I'm no stranger to modding games, just not used to Train Simulator's conventions just yet.
(While I was at it, I also removed some "rogue scenarios" today, and got all my routes and loco's thumb nailed)
