If that's what you came away with from that article, I suggest going back and re-reading it. I explicitly state that there are many factors and size is just one of many. I specifically stated that patterns, glass, and other tools to use as "hints" to come up with the maker. I wrote that article because members asked me to explain how size makes a difference. Twisting my words to say I claim to be able to pinpoint every marble in the country solely by size is inaccurate to say the very least, in fact it is an intentional gross misrepresentation of what I said. I also said that size was of virtually no help at all IDing marbles other than swirls. How you think that all means I claim to be able to tell every marble under the sun by size escapes me. I've spent a good deal of time humoring you and helping you see what's involved with sorting marbles. I have a lot going on in life with two handicapped family members I take care of full time plus 3 businesses, so my time helping with marbles is limited. If this game is what I have to play to help you then it's just not worth it. More important things...