You wouldn't even be shutdown in the first place. Search on Bill Roberts, he offen refers to a study which showed that the first 2 weeks you actually produce more testosterone, in response to the extra test or something, I don't remember exactly what. Dbol only could be used, but at the dose that is necessary to be effective at it's own (50+mg ED), the pumps for most athletes are not torelable. As far as me, I have ran 3 short cycles before I jumped on the blast and cruise train (4 months ago). For the last cycle, I used test E at about 900mg for 3 weeks. I did no PCT. I kept the same I had kept from the previous 2 cycles (which I had run a PCT), which after about 3 months, was nothing lol.