I have one each of the Lionel Pre Ware and Post War #91 circuit breakers.
I need a third breaker, as I have thee tracks, each powered by separate transformers/bricks.
2 Loops, each powered by one side of a Lionel ZW with 180 watt power house brick.
1 Groupe of sidings, all powered by am MTH A-1000 transformer and brick.
I can get another Pre War #91, but am curious:
Is the Pre War version as fast/effective as the Post War version?