Using my list of optimal zones, I hit level 48 in Hellgate: London tonight. Though it slowed down a bit, I think I could still easily do a level a day until I hit 50. Now I just have to decide whether to do that grinding before or after the rest of the main quest…

I have to think about upgrading my equipment a bit, too. I only just realized recently that I could have a separate set of armour and weapons for buffing purposes, since the stats of the drone depend only on what skill and equipment modifiers (Minion Armour +x%, Minion Health +x%, etc.) were in effect at the time it was summoned, so I don’t have to keep them on after that. I’ve got some half-decent equipment modifiers at the moment, but I still need more skill point bonuses.