have you cycled before? do you know if you will need proviron? is it to control water gain? I'm just thinking that maybe if you don't swell up too much, which you may not on 500mg(as long as you're not adding dbol), then maybe you won't need the proviron.
50-75mg I love the stuff. I would rather take something like that that will have more than one effect and not have some of the negatives like Anti-es and anti-aromatases have.
Supposed to free up more test, increases libido, combined with nolva and arimidex it will get you hard as nails. Is a week anti e by itself, but helps with the grainy look. And like mentioned before done use Post Cycle. Gets a little pricey when you go up to 100mg a day.