40-43; Garlaige Citadel
PETS TO CHARM: Wingrats (40-42), Siege Bats (40-43), Citadel Bats (46-48)
MOBS TO FIGHT: Fallen Evacuees (42-43), Puroburos (43-45), Clockwork Pods (44-45), Fallen Soldiers (47-49)
40, Camp in G-8, first floor. Do not fight the Puroburos or Clockwork Pods.
41-43, Same camp and same pets, but now fight Puroburos, Pods and skeletons.
I am currently finishing up 42 here. Just like to add that with good timing and pops you can run a decent circle around GC and pick up some great EXP. Wingrats vs Wingrats in their rooms, (I avoided skeletons)
EM vs T was very common at 40 & 41. Also Siege bats and beetles make great EXP between Wingrat respawns.
There are 5 rooms with pairs of Wingrats (non aggressive, link like crazy), if both bats are T, charm and release one outside of their room. Most rooms are in close proximity so work out a plan of attack, like room #1 then #2 then #4 then #3 to get the most from you chain. Repop time on dead bats is a long time so move to seiges (40-41) and beetles (41-42). You will be releasing Wingrats in their own room so no depop, let them recharge if ya want or re-charm and release outside of room.
Pets hold hate quite well even with /NIN. Also DC Wingrats can handle T siege bats they just need a biscuit and some support tanking from you. DC Sieges handle T beetles quite well, again may
need a biscuit, etc. at 41 they were giving me ~300 EXP with Ring, no chain. I can guess I made ~5K in 1.5-2 hours, no downtime and didn't touch one skele or pot or bomb, bats might be the way to go if blood sabers, -ga spells, etc. are ticking you off.
A word of warning though, blood aggro: I barely hit yellow but it does happen, some rooms have openings to other rooms filled with skeletons, if you are in said room(s) be sure you fight as far from them as possible. The same goes for the doors facing the hallways, seige bats will aggro from outside if you are too close. I used Heel & Fight a lot while in here.