No time for knitting

The last few weeks have been full of lots of non-crafty fun:

Bath Half-marathon

Though I am keen to get going again. I want to knit Evie from Kim Hargreave's Thrown Together collection. I am thinking of substituting Rowan's Cashcotton 4 ply for the designated Cashsoft 4 ply. Has anyone knitted with Cashcotton? Would it work?