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<p>[QUOTE=&quot;GDJMSP, post: 1448386, member: 112&quot;]It&#039;s certainly possible that in some cases it&#039;s due to a bad alloy mix. I&#039;m merely recounting what I have seen with my own eyes. As for the paper not touching the low spots - it doesn&#039;t always need to because as you know, toning spreads even when paper/cardboard only touches certain spots. Think of regular album toning. The only place the coin is ever touched by paper is on the edge, and look what happens to them.</p><p><br /></p><p><br /></p><p><br /></p><p>Again, not doubting a bad alloy mix could be the cause in some cases. But look at one of those old blue folders sometime. The paper wrinkles, and it tends to wrinkle in the same direction - parallel lines in other words. So when the lines are running this direction - / - on the rev side of the 3rd page. When you fold that page over/closed those lines are now running this direction - \. ( This - / - and this - \ - being used for illustrative purposes )</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>As I have said, maybe so. But that does not mean that it would be the only cause. Now does it ?[/QUOTE]</p><p><br /></p>

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