make Horntail/CHT/Zakum 1 clear per day instead of 1 enter, so many disconnect in there, and a lot of other bosses are 1 clear a day now, if your worried about people abusing the EXP, maybe you could make the EXP get rewarded all at once after you kill them instead of per Arm/Body part or something like that?
i think you should add what the critical looks like on the damage skins as well, because most people hit more criticals over normal attacks, and sometimes the basic skin looks amazing but then the critical looks disgusting.