These Legs are amazing for WAR and DRG, but I dont approve of Drks using them.
Onyx Cuisses and even the NQ will outdo these for a Dark Knight.
Ares Flanchard have 1 more STR than Onyx yes, but -3 INT and MND which are modifiers for DRK WS, which will hurt your WS Damage. The +16 Attk from Onyx more than outdoes the 1 extra STR from Ares.
Others might argue the 2% DA, but the majority of your WS will not DA. If your main job is Drk please rethink using these over Onyx/Black Cuisses.
But once Again simply AMAZING legs for WAR and DRG.
Great Piece for Macro WS King's Justice, but for Raging Rush you'll probably want to stick with Byakko's Haidate for Dex crit mod and accuracy. Although 6STR and Double Attack 2% more is pretty sexy if it happens while WS-ing.