Unless you are disendowed with a pre-existing condition manipulating cortisol is next to absurdish - body is a closed circuit with many feedback mechanisms.
Think of it this way:
After a cycle you try to stabilize your levels of sex hormones, to preclude suppression.
Given androgens antagonize cortisol expression, and some also compete for binding at GR, that means that cortisol is another hormone you'd want to return to normal basal levels.
Having maladaptive glucocorticoid system would be your worst nightmare ranging from mental to joint/tendon/cartilage issues to physical stamina/endurance problems.
Leave it where it is and you should be good
Cortisol is usually an enemy when it generates VAT (adipocytes)
Leave it where it is and you should be good