I just did this BCNM with the following setup:
PLD/WAR: Kraine
WHM/BLM: Rikuide
RNG/NIN: Me
My group defeated Punctured Percy at 80% Waxing Gibbous on Darksday (of all days... lol). I used war bow+1 with demon arrows. Regular range attack was between 130-160 damage. I was lucky to have all arrows land when I did Barrage (687 damage). My Sidewinder hit this ghost in the range of 800- high 900s. So for any rangers that wanna try this BCNM, I suggest you use bow/arrow instead of gun/bullets. ^^; My group got okay drops, but we're gonna try again soon. Best of luck to all of you~! *(^^)*