if you want the best increase in size. run superdrol for 4 weeks, run proper PCT, take a few months off and then run PP for 4 weeks, proper PCT, take some time off. rule of thumb is dont run to methylated orals at the same time and i wouldnt recommend running them 3 weeks back to back like some do. health risks are just not worth it plus you will have more overall gains running the two solo than you will at the same time. if you want something to stack them with, try a non-methylated oral like mega-trn, TST, x-mass or their clones. i would recommend a high protein diet, good sleep, flax seed oil for joints, taurine for back pumps you may get and creatine.