Alan I think you are wrong about measuring a SRB for competition and if you were cutting a SRB for competition you would need to ask the question of the committee much as I did on this forum. I am a long time member of the diyaudio forum, specifically the Pass section, and the rule there is no question is too silly to ask on the forum. I do not care to go back and forth with you flaming trying to prove who is right and who is wrong. All I wanted to know is how the committee is going to measure the size of the stone. I feel it was inappropriate for you, especially being a keymaster, to post “Surely a Grand Master candidate can interpret a GemCad diagram.” It was directed specifically at me for some reason since it was my question. I do not feel it was an inappropriate question. Better to be sure than sorry. I am sorry and apologize if I offended you in any way in this section or a previous section. I am too old to be making enemies.