My friend and I were talking about skiing and photography. I said I wanted to take some shots of him skiing off some jumps. As a preface I'm using a non-dedicated flash in manual mode. I'm trying to put on fill flash for the shadows. I read up on the forums like I'm supposed to (to avoid duplicate threads) and found this great thread with help from ksmattfish. I plan on metering off a grey card to get the right daytime exposure. The real question is, will the snow give me enough shadow fill-in? I'm not sure whether it would act like the biggest reflector ever or not.