Just in case anyone wants to know what the recommended weights are, here's the chart.
Scale: Initial Weight: + Added weight per inch of length
O: 5oz. + 1oz./inch
On3, On30: 1.5oz. + .75oz./inch
S: 2oz. + .5oz./inch
Sn3: 1oz. + .5oz./inch
HO: 1oz. + .5oz./inch
HOn3: .75oz. + .675oz./inch
TT: .75oz. + .675oz./inch
N: .5oz. + .15oz./inch
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