Hi HappyTriangman,
I think I've got the right thing. There is a simple solution I think, if your running on DC, the lights may flicker a bit when they are still, as there may be a few buzzes of power going through the tracks. Once you start running
the Train, do the lights work then?
On DCC You won't usually get the problem, as the carriages will be lit constantly. I reccomend going DCC if you can, not just for the Pullmans but it's cheaper in the Long run, and means alot less wiring when It comes
to that stage!
Hope this helps,
Jacob