That's the only way i've ever really used it too. I 've only used it the last 6-8 weeks of a cutting prep. The rest of the year, I usually did not include it, though maybe here and there for short bouts would help, especially during a period of susceptibility to high estro and aromatization. It was used for estro levels back in the 90's, it was well documented for that purpose, but I would not rely on it solely for that purpose (not saying you were). What benefits it has in that regard will be weak, especially for those very susceptible to aromatization. It may benefit in that it could be used in conjunction of Nolva or an Ai so higher doses may not necessarily be needed, but it will vary user to user probably. IIRC, Proviron, and other specific androgens help with aromatization through displacement...maybe that can be verified by others?
I don't necessarily have an issue with somebody using it all year, especially if bloods are good. However, I always liked to keep it as another weapon to pull out of the arsenal when it was really needed most, which was for it's supposed hardening properties during a cut. Well, I guess maybe it might help with sex drive at different times for those who need it and other compounds are not really helping?
Sorry, was just sort of speaking out loud in general of my thoughts. I actually have not used Proviron since the early 2000's, but i've been wanting to incorporate it a little more now that i'm older and it's fairly side-effect free........Disclaimer...."fairly."