about the origin of ultimecia (big big spoiler)

[Future Esthar]

Lunar cry and TC are different things.But Lunar cry is necessary so that X´s plans through TC suceed.Ah and there was no time compression after you defeat Adel.
And since X is responsible to the Lunar cry of course Ulti is smart enough to be at the master room when it happens.She will not fall for her own trap will she?
Don´t see what were the questions.Can you post them again?
Squall don´t remember everything at once.He remember as long as time passes.One time he remembers this,then on another time that,etc...
He just have the flashback of the master room when he approaches it.