When the project setting "Use Multiple Scoring Sets" is enabled, each evaluator user will create their own distinct set of scores for vendors' RFP responses.
To aggregate these distinct scoring sets:
Recalculating average scores does not affect individual user's scores. There is a default score set called the "Agreed Score Set", not linked to any user. When the "Recalculate Average" options are used it only affects the Agreed Score Set.