I'm working on a glass and it seems like all my fracturing is taking place on one side. I've run at 65, 50 an 45 power, all at 100 speed with 500 dpi. I've gone 100%, 80% and 70% black and this picture is of 45, 100, 500 on 70 % black. Most of the fractures are taking place on the leading edge of any stroke. Any thoughts on how I can get rid of this? It would engrave from right to left. Thanks.20150116_170133.jpg