Here is the secret to beating them.
Firstly, get 4 friends of yours, or 5. Make sure you all have a job 45+, SUB WARRIOR.
Now, make this macro:
/targetnpc
/ja "Provoke" <t>
Now, what you do is is mimic them. Everyone pick a person, their names are: Anueue, Kiteile, Yunaa, Smallbaby, Shielia, Bhsieli(wrong spelling). Have each of your friends pick someone and stand right where they stand. I say 5 because the two you need to worry about really are Anueue and Shielia. Smallbaby and Kiteile are their weakest links so to speak. They are not as fast on the voke as the two mentioned before. Yunna and Bhsieli are mediocre. Now, once the Chyme has spawned in one room, it's off to the next. Just stand where they are, facing the same way they are and spam that macro. It will come down to luck, I guess, but your chance increases about 50% then having 2 seprate macros.
Following these steps will lead you to step two: Dirty Tactics.
As it was mentioned, these guys will do everything and anything possible to get that spawn. Training Stropers and bats, having 4 of them run around with them leaving 2 to voke, and they HAVE SPAWN TIME DOWN TO A SECOND. They will call for help at the last second, so when Chyme spawns everyone is voking the calls. To aviod this, follow these steps:
1. Stand your ground in your picked spots, don't move.
2. Have a second macro with just voke on it.
3. Use tab to cycle consistantly around the room.
Usually they will only use these tactics as a last resort, if they are getting beaten alot, so you can almost be assured they will if you see people winning over them alot. otherwise, they shouldn't UNLESS I suppose there is like 30 people randomly camping, then they might.
As for msyelf, I recommend a THF with TH II for the drop. me and my 3 friends that normally take a few hours out of the day to camp just for granduer delusions of easy money and to ruffle the feathers of these gil famers are 0/52 for drops. So yes, if you don't train and aren't alert, chances are because of these gil farmers you will never see a drop, unless you, youself camp 24/7. I hope this helps, good luck, and help keep our server clean!