Hachi are best for ws using archery, but add very little base dmg to a slugshot build that would actually be used for agi in that instance.
For Sidewinder, hachi legs give 6.6 base damage.
For Slug shot, hachi legs give 5 base damage.
For Slug shot, oily legs give 1.5 base damage.
Unless you're hitting fSTR cap, Hachi win. Even if you're hitting fSTR cap, you can swap out other gear like a flame for a breeze. Basically any other slot where you can't get twice the amount of STR than AGI.
Even then, realistically you won't have hachi legs so leaving skadi on during WS isn't terrible, 5 agi and some racc will barely do better than 4 ratk and will for sure do substantially less than losing your hit build.
80 Pup Brd, 75 War Rdm Drg Sam Mnk Pld Bst Thf Whm Nin Smn Blm Rng, 72 Drk, 63 Cor, 50 Blu, 40 Dnc Sch