Coil Turn 5 With Class Base Kill Faster Than Job Base clear in [5min]

[Nuen]

http://goo.gl/CqveoK

I just saw a new trend with Turn 5 where people are using class base instead of job base to kill Twin and clear Turn 5 in 5min.
How did they do it?
Gla(Aegis) 05:14
Gla PLD Lnc Arc Arc WHM Thm SCH

Arc(Bahamut) 02:57
PLD PLD Lnc Arc Cnj Thm BLM SCH