Master duel wield should feel powerful given that it isn't a weapon you can buy for 5k fresh at 160. I think master duel wield doesn't need the old stat boost back but the other master and arena weapons that are underused (not vma bow nor destro bb) deserve a flat stamina one piece bonus to be up to par with master dw and crafted weapons. Plus master weapons should be acquirable in pvp end of campaign rewards again as doing pve to be optimal in pvp is meh

Sload's yes, absolutely.

Master DW is ok for what it does, but bleeds in general are over-performing in design. The big problem is that they're too cheap. Maybe the cost of Rending Slashes needs to be increased (and maybe keep Blood Craze cost the same since its ancillary effect is way less valuable). Or maybe remove the snare on either Rending OR Flying Blade - DW doesn't need 2 monster snares