Its impressive seeing all this training, especially with the worsening weather.
I think I got off lightly this weekend, I ran my 5m recovery along the seafront on Saturday with high winds and freezing, horizontal rain, and avoiding the occassional spray of sea water over the break wall. On Sunday I did the 16m with 10m @ MP run and the sun was shining and the seafront was like a picture-postcard (except for the temperature!).
The 16m with 10 @ MP was a run I was dreading but it went really well, started a little slow due to a gradual climb for the first couple of miles (7:35 rather than target of 7:20) but I was boosted by reaching level ground and averaged about 7:20 for the full ten miles (dipping down to 7:05 in the middle). Definitely the hardest run of the schedule so far, I was floating for a few hours afterwards on the endorphins released!
Ten, do you have a low(ish) Max HR? During the MP section my HR averaged in the 160s which is about right for me based on the P&D figures (168 is 85% of HR range) for marathon pace. So I was surprised to see yours was in the 140s for a similar run?