I've boosted with holy / Ret pallies, Ice / arcane mage, and now a demo lock. Repair bills a bit high, but offset by DE'ing greens and blues for low level mats then selling them. Demonic circle and sacrifice helped to offset damage, and once I got that figured out my repair cost per run went down.

Once you get them gathered, Met then immo aura. Kill the mobs that shield stun before you get them all gathered.Went from 8-19 RFC. After 18 the leveling slowed way down in RFC. It might be more effecient to run to SFK @ 15. Got locked out once 8 to 19. That might have been a good time to make the switch to SFK. @ 20 heading to SM.

Anyway, not sure if anyone's tried this yet. I'm fairly worried about repair bills getting out of hand once I get to SM where they hit a bit harder. I've got some fraps vid, but I'm going to wait to see if the lock is viable beyond RFC to post.