Using the latest version (1.0.10), it appears the 6e rules regarding which defenses apply to STUN damage from killing attacks are not being handled correctly. HCM is only subtracting resistant defense from the STUN damage, when both resistant and normal defense should apply (see 6E2 103). I went back to version 1.0.9a and that version seems to be applying defenses to killing attacks correctly, so it may be something introduced in the last update. EDIT: Nevermind... I re-updated to 1.0.10 and now it seems to be working correctly. Perhaps when I observed this issue, I was forgetting the rule about the minimum STUN damage being equal to the BODY that gets through.