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<p>[QUOTE=&quot;TypeCoin971793, post: 3437544, member: 78244&quot;]This formula <i>might</i> work for grades above MS-65, but the high weight on the entirely-subjective category of eye appeal makes this formula less objective than it appears. What if someone does not like the obverse toning and rates the eye appeal as MS-64? Who are you to say they are objectively wrong?</p><p><br /></p><p>Strike is important, but as long as you are not in the MS-68/69/70 region or looking at something as crappy as a 1922 no-D, it really does not matter grade-wise, especially if you have special designations for the strike that automatically affect the value like market grading does (FBL, FH, FSB, FT, etc.). Those that do not have special designations (buffalo nickels, for example) will trade at insane premiums above the assigned grade because specialists recognize the superior strike. Should the TPGs market-grade these to reflect the value of the coin? This just opens a whole can of worms.</p><p><br /></p><p>Surface preservation and luster are by far the most important criteria for grading coins, and their weights should reflect that.</p><p><br /></p><p>The formula I’d propose for BU coins would be: </p><p><br /></p><p>Surface Preservation: 50%</p><p>Luster: 30%</p><p>Strike: 10%</p><p>Eye Appeal: 10%</p><p><br /></p><p>And for clearly-cirulated circulated (AU-55 and below) coins:</p><p><br /></p><p>Surface preservation: 90%</p><p>Eye Appeal: 10%</p><p><br /></p><p>Using these formulas, the half here would be:</p><p><br /></p><p>SP: 0.5 x 65 = 32.5</p><p>L: 0.3 x 66 = 19.8</p><p>S: 0.1 x 66 = 6.6</p><p>EA: 0.1 x 67 = 6.7</p><p><br /></p><p>Total: 65.6. In reality, I’d probably assign a higher weight to SP, sacrificing S and EA.</p><p><br /></p><p>Using your numbers, this formula spits out an even 66.</p><p><br /></p><p>When PCGS takes away from technical aspects of a grade and assigns them to highly-subjective aspects of the grade, we get very debatable (and arguably inflated) grades.[/QUOTE]</p><p><br /></p>

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