Cerberus DPS Method - It Needs To Be Said. . .

[Delvish]

'All in' is the general consensus on my server, but it should be said that (alliance setup allowing) SMNs and MNKs should remain outside. Walls won't stay up long enough for DoTs to be as effective as they will on Wolfsbanes and Cerb. MNKs will likely see GL stacks drop by the time they get minimized, are eaten, and zone into the belly. The other front-loading DPS jobs are better suited for all in approach.

I will admit that I always held the chains, but after reading a few posts about delaying the second belly phase, I won't be doing that anymore. At least not on the first belly phase. No reason to wake him if he isn't dead already by the second.

[SpookyGhost]

Speaking solely as a MNK, I go in. Why? Because one of the times I didn't, everyone inside died, and we wiped. I'd rather lose my stacks and assure the one big mechanic of the fight is dealt with than wipe and lose my stacks anyway. In a perfect world, MNK and SMN stay outside. DF isn't perfect, though, and it's better to take the path of least resistance.

[RaginCajun]

Thing is, if you have to find frankly weird methods of completing very simple things, then you are doing it wrong

[Kaiser-Ace]

Speaking solely as a MNK, I go in. Why? Because one of the times I didn't, everyone inside died, and we wiped. I'd rather lose my stacks and assure the one big mechanic of the fight is dealt with than wipe and lose my stacks anyway. In a perfect world, MNK and SMN stay outside. DF isn't perfect, though, and it's better to take the path of least resistance.

I hear that. I only stay out side as a Dragoon when the DPS has done an exceptional job on all previous stages and I can confidently let them do it one man short. Cause I can, have, and will likely need to again, solo that stomach full of dead dps. Thank The Twelve for HQ X-Potions.

[Gralna]

'All in' is the general consensus on my server, but it should be said that (alliance setup allowing) SMNs and MNKs should remain outside.

Smn should go in for no other reason than to summon titan and have him grab the adds, seen a few alliances wipe because all the dps were killed inside the stomach. Also of late I've been staying out to help dps down the wolfsbane, since it seems it's rare for one of the two offtanks to grab them, resulting in most of the healers being dead by time dps get out of the stomach.

[Tsilyi]

My personal favorite is when all the dps go in and the 2 OTs stand around outside twiddling their thumbs and don't even pick up the wolfsbane. We come back outside and are like "er... why is everyone dead?"

[Leigaon]

I usually stay outside as DPS unless I'm on B team. People have seen wipes for a number of reasons, mine have all been because adds over run the outside. I have seen death inside the stomach of the puppy but it's usually because there's a tank performing the manderville at the start while the other is taking on adds and the final tank is holding Cujo. Then again I don't run this 50 times a week enough to really get to where I need to save a few minutes and demand one way or another. When I am in the stomach I feel like i'm in the old Sega Gensis commercial "What's going on up there?!"

[Lyrinn]

I like belly only because it lets me regen TP since I'm usually running low by that point and 99% of bards have no musical talent whatsoever. Otherwise I try to kill the adds - and then cry because tanks don't pick up/lose aggro, I die and lose all of my TP anyways. >.>

Belly it is.

[ThirdChild_ZKI]

I'm glad to see things are evening out between how many go in and how many stay out, at least on my data center.

[Trespar]

On my data center it just seems that ABC goes for the tanks and healers, and dps just do whatever they want.

Generally speaking, though, B team always enters entirely, and a few dps from both A and C join them.
There's really no reason not to go in. Even if your healer isn't joining(except for B healer, who is only necessary to heal B tank), you'll be fine because the persistent damage does like nothing.

Honestly, it's pointless debating what the best tactic is, because in the end, people will just do whatever they want, because they've been getting away with it ever since the fight became pure farm status for the entire population of the game.