Any improvements in the boosting process in the last few years?

[sync00]

Each objective gives a nice chunk of xp, so I've definitely done all of those each time. And that includes opening up all the mailboxes, as that will spawn Postmaster Malorne, who is also a bonus objective. It's the bonus objectives that make it such a terrific instance for levelling in my opinion.

I had the impression that finding the mailboxes was quite time consuming, so I didn't do that. I have another run coming up in the near future where I will try it.