8 +/- is good. Like Xantille said, OOR healing/rezzing shouldn't be a problem since there's only 1 box allowed. That's not to say someone won't lvl up a lvl 39 cleric or rogue to get in and drag corpses/rez people.
I am definitely not against FFA raid zones, but guess we'll just have to see how much they'll be needed.
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-Zeebbo
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