Mycelium and Chief hit the two nails on the head.
Anecdotally, the advice has long been time on + PCT = time off.
Lab results would confirm or deny this for individual users.
If you’re blasting and cruising, you can probably alter those numbers, but you should still give the endocrine system a good break 2-3 times a year and get baseline bloodwork levels.
Play the long game, do your research, spend some money and get your bloodwork.