So whats the trick to getting a good group of peaple to do titan ex with?

[Lemon8or]

you have to check that they have beaten Titan by checking to see if they have ifrit unlocked,

He can't specify that since he hasn't beaten Titan before. :/ Do you read the OP?
OP: a week is nothing, just make friends with people who know what they're doing from the PF you do and make a group with them.

Is common sense that if he wants to beat titan, he needs people that have gone through the fire before, not first timers because, it'll never happen with new people to the fight.

What about those that were first to beat the fight? Do they need someone that has gone through the fight before to play with them? No. It's common sense that if he wants to beat titan, he needs people with the skills and/or tenacity to beat it, not people that have beaten it before. The first time I beat Moogle EX (not Titan EX cause it was so long ago I don't remember), all 8 of us got the achievement.