Fred,
I run it with my geared Bachmann 1:20.3 engines. Remember, I work in that exacting scale of 1:21.4 ( half way between 1:20.3 and 1:22.5).
John,
I tried that for awhile and compared to the Bachmann 1:20.3 equipment it wasn’t as good. As I said, decided to try something because they became shelf queens and nothing else.
I like the larger size of 1:20.3, but live in the world of compromise.