Learn to squeak by hand as well, and get another type of caller, I liken it to trout fishing, fish with a black fly on friday, and catch with it, use the same fly on saturday, and the fish wont look at it, well its the same with foxes, what works one day, will not work the next, are you using a white light? If so try a filter red or amber, dont be afraid to change call when he is coming, if you have an electric caller, (or get one) try calling by hand at the same time, sometimes it overloads their senses, and even shy foxes will come in, and full moon is pretty damn useless, keep at it, you w