I'm interested in buying a pair of John Lobb 2010 St. Crepin double monks in brown misty calf. However, while trying them on in the store, I noticed that the creases developed highlights. Though I know this is standard on any calf, these seemed a bit more unusual - slightly more wrinkly and chalk-ish looking. Does anyone here have experience with JL's brown misty calf? Could you say how your experience has been? Comments on museum calf are welcomed as well.