I don't think giving shoes skill+ the good fix but have main weapon skill affect kick dmg.
if SE makes Urat's fix (kick dmg only fixed by shoes) :
-a rigor/manibozo feet have about same DPS using footwork or not
-a ao2-4/manibozo have same dmg per hit than rigor(minus +stat) but high multi attack, only downside is WS restriction to DK/TK
=> lvl99 h2h>new h2h as long as new feets match skill/dmg of new weapon
now let's give feet urat's +dmg value (even if he forgot footwork base +dmg, just count it in the +dmg value)
rigor+mani=69+144=213
oa2-4424+16)*.11+3+144=195
~10% dmg/hit VS multi rate, depending on how much da/ta/qa you have before oax might still win
porposal: change skill/kick dmg
make it so it still make footwork< h2h with "normal" shoes and add kick dmg shoes that close the gap