Marc,
I don't need the turnout lantern bulbs, since I am running MTH DCS (command).
If you're running DCS you really shouldn't use track power for your switch tracks. Running track powerl through the switch motors cause DCS signal degradation.
This and a whole lot more is all in MTH’s “The DCS O Gauge Companion 2nd Edition", available for purchase as an eBook or a printed book at MTH's web store!