Depends which list
Balance rate is the most important and it shows the value of adding and or taking away fuel to retain a smooth idle.
Shows overall condition on whether they are seeping do to fatigued seats in the negative range or positive because of debris or other reasons.
High balance rates +/- indicate overall condition of the injectors of performance and fuel econo to potential problems.
GM looks at retun rates more so than balance rates for warranty replacement.
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