Carmina light cognac vs dark cognac (daylight comparison):
These are 8.5 Uk. I also have a 8Uk shell single monk in Rain but that was really messing with my little toe on the right foot, so I sent it to be stretched. Now it is ok.
Only thing I can think of is that my true carmina size sits between 8 and 8.5Uk. But I would rather have them slightly relaxed than full-on tight.
I don't have such prominent creasing in EG, G&G (where I take 8.5E) and St Crispin where I wear their 8F (normal width).