ive done a 5/6 split on the old chaos fighter and the charlatan has a 21/3 split for lunacy (though the beam weapon never seemed to work right). it can kill really fast. probably raeps balance and its mother too, not that anyone wants to fly such an ugly ship as the chaos or an unbalenced monster like the charlatan.
while a 6/2 config can come in handy, have a bank of big guns like kaysers, you can still keep a tactical weapon while maintaining kill power. i kind of like exotic configurations, care must be taken to balence the ship in other ways, such as weakening its afterburner, shields ect. use the tank formula, balence armor speed and firepower using other ships to determine normal proportions.