Its interesting to beat it with 1 CNJ but the 6 minute part I wouldn't be that proud of. We've beat it in 6m30s with 3 lnc 2 mrd 2 cnj 1 thm before. (No dashes, all eruptions on mages, lots of incinerates/plumes) Basically a lucky draw of what WS's he uses, though with 6 LNC its impossible to get incredibly lucky draws since Eruption will be on meele every time. Gotta love when he spams dashes though, 17 minute fight with mages sitting at full MP at the end -.-;;
I think we were going to try to burn him before Hellfire got off for fun one day but haven't tried yet. With 6 LNC's the math says its possible if you ignore all effects, nails, and he decides to not use dash (maybe 1 dash is OK but its close). You just have to ignore Eruptions and eat them, and try to have 4-5 of the LNC have full TP right on Nail transition start.
Anyways thanks for the video.