wfp in direct sunlight is pants . been wfp 8 years and this week a lot of the windows look a right mess . cleaned my front windows every day this week {facing the sun } just to see how they dry . and i wouldnt pay me . water is zero, rinse like a loony but still crap nresults . but no complaints or cancellations from custys so im not that bothered as we dont get too many scorching weeks . so my advice to all you tradders that are happy is stay trad .and all you wfp guys who think it is better than trad you are kidding yourselves .