I took the time to check out what changed with these monsters this maintenance. Geffen 3f was changed to be a good level 90 zone. TI 3f-4f monsters are now a touch higher level, probably to make it easier to 99 there. Sting and Majororus were adjusted again so that you could hunt them to 99 (before their level made it so you had to change to 3rd to hunt them effectively). Arclouse was boosted to be close to Ancient Mummy, which was lowered a bit. It makes Pyramids Basement 3F to be pretty consitant in level, but I'm not sure what it means for other places arclouse spawn...