Would doubling on a Presidential Metal issued by the mint be desirable or detracting from desirability?
Medal. Auto correct. It's spelled correctly in the title. The coin and chronicles sets from the mint have medals in them. If one were to have doubling would that be desirable?
possibly, or possibly not. your post is pretty much meaningless, define: doubling: double struck? Doubled Die? Strike doubling? doubled label on the box? etc.