I taped my foot and it saved the blister. Otherwise double layer socks are quite good.
TT -The shoe fit is surely the problem though, can you lace the middle section a bit tighter or do the fancy lacing system to kep the shoe from slipping down.
Lotte - wow, i love the race report, think you are right about a pacer if the last section was so much slower for you. Cant believe you ran yesterday, i take a whole week (or 2 ) off after a normal mara.
CC love the sunshine on your face
No VLM for me either, taking a break from all the long races for a while.....maybe.