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<p>[QUOTE=&quot;SuperDave, post: 2597077, member: 1892&quot;]One factor in my thinking is the geographical variation of striking pressure on individual coins. It stands to reason that areas becoming fields will be under different levels of pressure, and individual molecules will move a lesser distance during the strike, than areas becoming devices. On the other hand, that extra metal needed to fill the void of the device has to come from <i>somewhere</i>. It doesn&#039;t bother me for a clipped coin to lose that &quot;perfect&quot; radius during the strike, or even for two coins with identical clips to strike up differently.</p><p><br /></p><p>I&#039;ve often wished we could go back in time and &quot;tag&quot; certain molecules in a given planchet to see what sort of migration occurred during the moment of strike. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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