Simple Ninja Rotation question

[Arkenne]

O____O!!!

Use it...
The sooner and longer it is up, the better... specially with MU... it is not a DPS loss, never!!
Just make sure to renew it before it fades (at like 3 seconds).
It can totally follow the scheme of:

MU > SF > 3HitsCombo > 3HitsCombo > SF > 3HC > MU > 3HC > SF

SF is renewed once every 2 3HitsCombo
MU is renewed once every 3 3HitsCombo
MU and SF can be interpreted together as another 3HitsCombo of 800 potency. Which beats the AE combo of 670 potency.

Should no DoT be up on the enemy, MU should be placed before SF.
Should both DoTs be about to fade out of the enemy (about 4 seconds on both of them), SF should be renewed before MU.

SF requires 9 seconds to do as much damage as AE.
MU requires 24~27 seconds to do as much damage as AE.
Do not use them if the one target you are hitting will not live longer than that.