Recently, a formula for the ballast that the club uses on its N-Trak and T-Trak layouts was sent out in an e-mail. For some reason, it did not result in the ballast that was matching previous modules. Bruce Alcock and I spent some time attempting to re-create a formula that did match and have successfully achieved a formula that does so. The old incorrect formula was: Woodland Scenic fine ballast ration: 1:1:5 of cinder, light gray, gray (used to be called dark gray).
The new formula is: Woodland Scenic fine ballast in 20 parts light gray -12 parts gray -1 part cinder.
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