As said above bop 3 and 5 don't count, the recent ones you talk about were both on bop 5. You also should not think about -3, level par etc. Your average is worked out on scores, as in the number of strokes not how many over or under par.
If you score 38 (or 77) in a ranked round your average will go down and it wont matter if it's +2, +3 or +4.