Maybe it's just elk in our area but full moon is like taking candy from a baby. The elk like Elknut said stay up late feeding and in our case are always slow to go to the bedding areas giving you alot of stalking time. But that tends to make the elk come out almost at dark beyond legal shooting times. But elk in pressured areas are going to be very hard to time outside of timbered areas in a full moon phase. I say bring on the moon and the snow just leave the hot and dry at home. That's win you earn your stripes as an elk hunter hunting hot and dry.