When S30V was first introduced, several companies had problems with their blade chipping. They would chip while cutting, and even on the sharpening stone. Several causes were put forth, the 2 most likely seeming to be that it took some time to get the heat treatment for this new steel dialed in for knives, and that there was a batch of the steel that came out that had some QC issues. I wouldn't worry too much about it now. If you do have chipping issues, try a full resharpening a few times, going through the rough stones only. Form a burr, then cut lightly into the stone to remove it, then repeat 3-4 times. This usually solved the reported issues, though not always. I only have the one S30V blade on my tanto Griptillian, but have not had problems with the edge chipping during use or sharpening, and I've only given it a full sharpening once.