Greg:
Eight weeks is a pretty compressed time frame to make real gains using the periodized approach we advocate. If you have a high level of general strength and conditioning then I would shorten P1 to 2 weeks, drop P2 and extend P3 to 6 weeks. If you are deficient in strength then this approach will not work very well and you need to add more P2. Keep in mind that doing only 2 weeks of the ME in P3 will not do much to improve your muscular endurance, honestly.
Scott