Agree, however does oz hedge the dollar. When i worked for mim, they hedged cu, zn etc and the dollar i think, not sure, if they don't yes it's a big help to us if it falls.
Arrr just remembered, one of the meeting i went to they were saying that as copper went up the dollar went up (as we all no) thus profits had little change. Was a long time ago, just talking out loud.