I've done alot of reading on this stuff on the BB forums... I would not suggest over 3 weeks on the Superdrol, let alone stacking it with PheraPlex. The Superdrol alone should put 3-4 pounds on you in a matter of days. A guy I train shot up 5 pounds in 5 days on 10 mg of SD alone... be careful with that stuff, it's STRONG. I wouldn't let him do more than 3 weeks nor have I allowed him to do another cycle in a time frame less than 6 full months after the end of PCT. Don't take those chemicals lightly... Superdrol is stronger than a good bit of the illegal stuff out there.