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<p>[QUOTE=&quot;mikediamond, post: 45279, member: 1859&quot;]First of all, you must disabuse yourself of the notion that there is such a thing as an identifiable &quot;die trial&quot;.&nbsp; While die trials do exist (at least inside the Mint), there&#039;s no way to distinguish a weak strike generated during a test run from a weak strike caused by spontaneous equipment malfunction.&nbsp; A weak strike is simply that -- a weak strike.</p><p><br /></p><p>There are two proximate causes for weak strikes. 1) Insufficient striking pressure.&nbsp; 2) Insufficient die approximation with normal striking pressure.&nbsp; There are perhaps a dozen ultimate causes for weak strikes.&nbsp; In a simple weak strike, it is impossible to determine proximate cause, let alone ultimate cause.</p><p><br /></p><p>My extensive studies of multi-error weak strikes indicate that the vast majority of ordinary weak strikes are due to spontaneous equipment malfunction and are also mostly due to insufficient die approximation.&nbsp; The dies are out of adjustment, or are being held apart, so that at their closest approach, they are barely closer than the thickness of a planchet.[/QUOTE]</p><p><br /></p>

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