I was gifted a new Hornady GS-1500 electronic scale for measuring my powder. I re-calibrate it before every reloading session with the 100 gram check weight that comes in the box. Here's my head-scratcher. I'll measure out a charge of powder, dump it into the casing, put the empty pan on the scale, it reads "0.00" and then, when I'm scooping up the powder for the next casing, the scale will suddenly register anything from "0.02" to "0.06". I take the pan off the scale, put it back on, and then it registers zero again. Not a big problem except that I have no way of knowing if it is doing this while I'm weighing my powder charge. Needless to say, if you're getting into the upper ranges of powder charge or trying for supreme accuracy, 2 - 6 tenths of grain difference can be a problem. Is it just a cheap scale? Anyone else had this problem? Dump it at a gun show and invest in a better one? Any input would be most appreciated. Thanks guys.