Context: Although Greg argued that an editor should be free to use his judgment to choose between competing substantive readings, he suggested that an editor should defer to the copy-text when "the claims of two readings ... appear to be exactly balanced. ... In such a case, while there can be no logical reason for giving preference to the copy-text, in practice, if there is no reason for altering its reading, the obvious thing seems to be to let it stand." The "exactly balanced" variants are said to be indifferent.

Question: Are there times when an editor's judgement should be deferred?
Answer: the claims of two readings ... appear to be exactly balanced

Question: What should one do when two readings are contradictory but balanced?
Answer: if there is no reason for altering its reading, the obvious thing seems to be to let it stand.

Question: What do editors call variants that are exactly balanced?
Answer: indifferent

Question: Who argued that an editor should not be free to use their own judgement?
Answer: Unanswerable

Question: What do editors call variants that are not balanced?
Answer: Unanswerable

Question: What is the term for variants that are somewhat balanced?
Answer: Unanswerable

Question: An editor should not defer to what when variants are balanced?
Answer: Unanswerable