Winny will shut me down. Pretty much any AAS will shut you down. If you are shutdown (even if you don't think you are) you should run a PCT. What do you plan on doign for PCT?
Honestly though, I will never run another oral only cycle again. Winny is hard on the joints, the hairline, the lipid profile, and most of all, your liver.
Keeping a cycle simply is test only. Less sides, more gains. What's to lose?