Well said and thought out, Stan. I don't know about trap shooters, but skeet and sporting clays shooters in the highest classes are known to use chokes tighter than used by their more mediocre bretheren. This is especially true in the small gauge events. A .410 with .007 or .008 constriction will reduce a skeet target to dust if well centered. Twelve gauge NSSA competitors often use no constriction to .003 with good results, but some use more for more satisfying breaks.