The actual oz will not double on a cut off lowered to by half cuz of higher grade concentrations add more oz per ton. See chart from Trelawney TRR nr of last upgrade

TABLE 1 - MINERAL RESOURCE ESTIMATE - MARCH 4, 2011
Trelawney Mining and Exploration Inc. - Cote Lake Deposit
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Cut-off Grade Tonnes Grade Contained Au
Classification g/t Au Millions g/t Au Millions of oz
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Inferred 0.30 131 1.00 4.22
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Inferred 0.35 122 1.06 4.12
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Inferred 0.40 113 1.10 4.02
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Inferred 0.50 100 1.21 3.88
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Notes:
1. CIM Definition Standards were followed for Mineral Resources.
2. Mineral Resources are estimated at a pit discard cut-off grade of
0.30 g/t Au.
3. Mineral Resources are estimated using a gold price of US$1,200 per
ounce and metallurgical recovery of 95%.
4. Highgrade assays are capped at 25 g/t Au.
5. Bulk density of 2.7 t/m3 was used.
6. Mineral resources that are not mineral reserves do not have
demonstrated economic viability.