VZ/TZ PVP Con Query

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I vaguely remember the Con system working as such for PvP on TZ live circa 2001:

Green - out of range below you
White - within pvp range
Red - out of range above you

Having everyone in your pvp range as the same consideration level added a real sense of insecurity to each battle that we dont quite experience here. I know that finding a blue is going to be a likely victory, and that running from a red is a good idea. I think many more battles would at least take place if the con system was changed for PvP