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F3 AA or F3 AB ?

What is more typical to run, units in F3 AA configuration or F3 AB configuration? My small layout is too short to run a F3 ABA configuration. These are in NYC road name.

Thanks

Original Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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