I guess I started this mess about a year ago. Here is my opinion now: Superdrol (orals in general) should only be used to jump start a cycle where test is the base. I'd avoid orals anyway, just shoot a ton of prop.
If you must do a superdrol only cycle, run it for 3 weeks at least. You may get decent results by the 14 day mark - but those gains are hardly yours to keep and it might not be muscle anyway. You need another week (at least) to cement those gains followed by a good post cycle. Like M1T, run Sdrol for 25days.. That's my call.
Then a month of PCT, these orals shut you down big time.
I would even run HCG during the cycle as well, but if you can get HCG - chances are you can get prop. Most everyone who uses Prop in combination with Sdrol gets better gains than Sdrol alone. consider that as well