When doing a race in the rain , you know the roads are wet obviously but after the rain has stopped the road instantly looks dry ? why , it makes it really hard to know when to change from intermittent tyres over to drys, why are there no signs of the rain like wet patches, puddles, etc it would be nice to see the roads drying out, or at least have some sort of little indicator showing if the roads are now dry or wet as visibly you just cant tell