There wont be a MQ2 macro for Phinny
And any ingame "social" macro would be very PC dependent, as in you will have to do trial and error. Your internet connect, PC lag, how many instances you generally run, all effect the timing. So say you get a social casting key set up.. if you choose to log in more toons, depending on how that effects your system/internet, it could skip a spell or 2 as the pause Vs lag will be off.
I don't use a stun hotkey but I do some numerous DoT or Nuke sets for my casters. It takes some time and effort to get them "just right" and a number of things can put them off
/pause 035, /cast 1
/pause 037, /cast 2
/pause 029, /cast 3
/pause 031, /cast 4
/cast 5
Just a heads up about EQ social macros, you can put the pause in the same line as the cast, but it has to go first. And then the pause happens AFTER the cast (nice of SoE to make things consistent and intuitive =P) the pause also work in three digits, but is one decimal over.. IE an entry of "010" is read as "01.0" or 1 second.
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Personally, as this is Phinny, I think you would be better off setting up a weave keywith your AE stuns and just poke it ....or have a gaming keyboard/pad/joystick/autohotkey set up to chain hit the weave key on command. Then you will be casting the first available AE stun as fast as lag permits, with out potentially being tied up with a social macro sequence (the social macros are rough to stop, if you need to be casting something else on the fly)