Personally I would not and have not assigned much value to the copper targets. Although as Wes said it did provide some "blue sky" potential and I would have dearly loved to see us drill them out given the success that CTQ has had on our northern boarder.
I remember that idiot fatman used to go on and on about the "copper credits". You only get credits if the other metals are in the deposit you are mining. Credits lessen your recovery costs from a reporting prospective as many gold producers choose to calculate in the gain on copper against their per ounce recovery of gold. In our case, given there is no copper in FDN, our credits as minimal as they are would come from the silver.
Regards,
Buck