I am perfectly able to design a stone using Gemcad but for the sake of us that are not as intelligent as Alan and Ron let them tell us the place to measure from to achieve 12mm and not be penalized. Dan has already stated that the competition committee is going to give clarification but appears your two already know how so tell us. As I see the diagram the largest measuring point would be either 24/72 or 96/48. Either should be the longest spot being that the L/W is 1.001. I honestly believe Alan’s post was just made being a jerk towards me, to insult me. Both of you tell us where to measure from where no one will be measuring from the wrong place or perhaps you both just want to keep the info for yourselves to have an advantage.