Grind Fight notes

Normal Encounter

Cycle 1

Edge Parry
FSY Quake
Rydia wait until Quake goes off, then parry
Cecil/Rosa Parry
Delay
Edge Parry while D. Machin casts Fire
FSY quickly Weak D. Machin
Hold A to attack with Rydia
Ro Life D. Machin
D. Machin Fire
Cecil Life D. Machin while Rydia kills D. Machin

Cycle 2

Edge attack Searcher
bloop blooooooop
When Alert message disappears, Weak the D. Machin
HOLD A going into Rydia's turn to attack
Ro Life as Weak goes off
Ce Life as attack happens

Cycle 3 - 6

Same as cycle 2, but wait on Rydia's turn to see what the searcher does, as ATB here is random.

If Rydia's turn appears before the searcher text box, then attack d. machin immediately and continue the cycle.

If the searcher textbox and rydia's turn appear simulataneously, then the textbox acts as a run buffer and you need to attack the d. machine about 2.5 beats of the fight song after the text box disappears.
What will happen here is that you will get Rosa's turn and the d. machin will cast Fire. If this doesn't happen then you were either early (Rydia attacks before Weak) or late (lose the double life strat).
If you maintain the double life strat here, you will need to hold A going into Rydia's turn every cycle onwards. It isn't guaranteed that you will keep the double life strat.

Back attacks and Surprise attacks

If you parry with Edge straight away you will get Cecil's turn after FSY instead of Rydia, and the strat is ruined. To avoid this, wait until the second beamer's action is fully completed (either failed action or after the damage numbers disappear) and then parry about .5 seconds after this. You can then continue the strat.

First strikes
FSY will act before Edge because of character placement. You need to swap their turns before continuing the double life strat.
To do this, have FSY Lit3 one of the beamers, and Edge parries straight away. Wait on Rydia's turn for Lit3 to cast, then parry back to FSY and cast Quake and continue.

End of fight
Weak searcher if your last attack (from Rosa or Edge's drain will not kill Searcher)
kill off useless people
last character attacks Searcher
hold B during level up messages to deny collecting items at end of fight.

Finding grind fight

https://dl.dropboxusercontent.com/u/19404607/ff4/GrindFightManip.PNG