Like 008, I've been focusing pretty heavily on the essays as well. (and for about 2 days, I didn't do any essay problems either, but instead made study outlines of all the subjects; I really needed some review).
I'm adding MBE questions in again, starting today. I did the first mixed problem set in the MPQ1 set, and I agree - a good number were very easy, most of the rest were decently challenging (narrowed down to 2 really good answers), and there were a good handful of just BS questions that were worthy of being in sets 5/6. I got 75% right on that question set, which is what the woman at our MBE review said we should aim for.
I still haven't looked at an MPT yet. I really need to remember to do that this week.