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<p>[QUOTE=&quot;mikediamond, post: 505218, member: 1859&quot;]The weakness could be due to a slightly weak strike or it could be due to an accumulation of grease.&nbsp; It&#039;s unlikely to be a planchet defect, since a localized thinning right in the middle of the planchet is exceedingly uncommon.</p><p><br /></p><p>As far as it being a &quot;test strike&quot; (a.k.a. &quot;die trial&quot;, &quot;die adjustment strike&quot;) such a determination is never defensible.&nbsp; Unless you were right there when the coin was struck, it&#039;s impossible to determine whether a low-pressure strike was part of a test run or is simply the product of spontaneous equipment malfunction during a press run.&nbsp; My extensive studies of low-pressure strikes indicate that the vast majority are simply due to press malfunctions.&nbsp; In other words, you can ignore any slab label that says &quot;die trial&quot; or &quot;die adjustment strike&quot;.&nbsp; It&#039;s purely wishful thinking on the part of the grading services.[/QUOTE]</p><p><br /></p>

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