Ask a Warrior Thread.

[...]tradable one at least has a justification over a silent crusade shoulder.

Not really.
Tradability is only interesting if A) you have invested a lot in scrolls or potential, B) if the item is hard to replace or C) if the item has resell value. Pauldrons does not fit into any. Granted, you could use low level pauldrons before you finish enough of Silent Crusade to get the shoulders, but that would not get you much stats and it would be a terrible, terrible waste of emblems.