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<p>[QUOTE=&quot;joecoincollect, post: 2505586, member: 71338&quot;]I&#039;ve read about distinguishing cam levels by reflectivity as well in a few places. However, I was just reading the ANA grading book. In the glossary CAMs are mentioned and I got the impression it was saying that the level of CAM is controversial and not well grounded. The reflectivity test is not mentioned. Maybe the level of attention given to the topic was minimal but perhaps they believe not much more is needed.[/QUOTE]</p><p><br /></p>

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