We use the cliffs every time and our last 4-5 attempts have been succesful with 28-36 people.
Our strat is pull DL from spawn point to the top of the cliff and have PLD immediatly invincible/ja, all mages are at the bottom and 1 rdm/drk out of range with 1 rdm/drk kinda to the side of the cliff casting stun. Melee surrounding DL typically sub ninja, except some crazy rangers who wanna sub war for extra damage.
The most important aspect of DL is having a quick xarc run so you have time to warp and change jobs to damage dealing jobs.. Kraken Drk > Rng >>>> Blm.
Oh and imo more than 2-3 rdm/drk is just a waste of possible damage dealing jobs..
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