Like Trevor mentioned I have only seen really expereinced fisherman use PE6 for GT's and with that I understand that they using relatively light drags.
JB80 and JB100 has been tested to break around 115/120lbs.
Sure PE6 will handle you average GT but what about that trophy fish that we are all after? I think you want as much on your side when targeting GT's as they are one son of fish to land whether small, average or trophy.
Still just wanting to understand what advantages do you think using PE6 has over using PE8 or 10, is it thinner diameter, line capacity, casting distance........?