rather easy 518 damage with khameleon kameo,midscreen to corner,for 1 bar
22××mileena roll,s4xxdb2xxdb4EX,jump24(mileena sais)2,jump 24,air dash down,242××bf2.
you can spend the seconde bar at the end with a bf2Ex and add another 24xxbf2 for 543 damage.
in open space the one bar variant ends at the jump 24 into bf2(after the mileena sai portion) and does 482 damage