Proviron should not be used as PCT. I find where proviron works great is right up until your recovery after any long esters. For example, say I take my last shot of Test Enanthate in wk 10. Then I would take proviron right up until wk 13 when I start my PCT. As soon as you start PCT, drop the proviron. Its kinda like a pre-warmup to PCT. Helps with the mojo nicely as well.
Mavy