In last patch 1.1.5.0 many Blue DOT Retaliantion items have very nice UP
Example Daega Set - each item was UP by 50% Retaliation Damage
But Soiled Trousers have very minor UP
I suggest to add Myth. Soiled Trousers some % Retaliation Damage and maybe UP from 5% to 8% RtA damage on proc