Gradual Reduction in MF Effectiveness

[adeyke]

I think counting failed items as "good" would be a mistake. If the drop-off is real, many possible explanations could result in more failed items and less real uniques.

Uniques fail iff that unique has already spawned in that game or if there is no unique version for that item with that ilvl.

Sets fail iff there is no set vesion for that item with that ilvl.

So if you get a double-durability set item, that has to be considered a set item for purposes of drop "goodness", since you would have gotten a set item if it was at all possible.