If I may throw my two cents in there? I agree with Komamisa on the last paragraph. In my opinion you should not need to PM too much unless you are planning for further than the fight itself. I like to enjoy fights between players because it allows you to imagine what's going on and use your creative style against theirs. You'd be surprised the cool stuff that happens when two creative fighters are up against each other. It can get pretty fun when you let things roll. Of course this is all in line with the two rules that Ionion put out. No auto-hitting especially as it ruins the creative nature of such a fight and the other's ability to react. Always leave space for a reaction for their character.