Okay, just checked the trees last night. The Epic trees are wide, and you will have difficulties fitting shoes with narrow lasts. I believe another SF member (cannot remember who ATM, sorry) already warned us previously on Epic trees width.
Meermin's Hiro last is already a generous last, but the EPIC M size will not fit Size UK 8.5. If you have medium width fitting, I suggest be safe and either go one smaller or choose another tree.
On the other hand, if you do get trees that are marginally too big, there's always sandpaper.