I don't have that skill "Gun Fu" or "Move and Fire" but I'm using the Kami,Adrenalin and also the Hurricane all the time but the Hurricane almost never stun them - let's say it happens 1 from 4 or 5 times to appears stun to Leo for 1 or 2 turns,and for that turn i use Kami or Pistols x3 or if i need i use "Fast Recovery" or "Adrenalin" and then Hurricane,Kami or Pistols x3 ! I also try to use "stun gun" but even that one is not stunning the target all the time and most of the time happens i need to use more often "Fast Recovery" and after that most of the time i try to stun them with Hurricane or defend myself with Kami which boost my power and make me take less damage but sometimes it happens that Margot is making my move dissapear - for example let's say after "Fast Recovery" while still having Kami for 1 or 2 more times on me,i press to use "Pistols x3" or "Hurricane" but when i choose what to do,first Leo is using some buff and then the Margot is using some skill that makes my move i choose,never happens and i'm not doing anything to them in that turn,only loosing health and then need to use again "Fast Recovery" or any other health potion if they took more damage on me!
PS: Even the "Furious Combo" doesn't stun them almost never and most o fthe time it's say "miss" or eventually only is making them some damage and debuff the attack of Margot ot Leo for 1 turn!