Why might you get tested?
If you're competing in any officially natural orgs, be it bodybuilding or powerlifting, and you're thinking about juicing you need to remove yourself right now from whatever group.
I fuckin' hate the guys that juice and then come in all smug because they're bigger and stronger than other people in drug free events.
Second, sounds like you need more research on your chemicals, bud.
Those two drugs act pretty differently.
Do more research on both and steroids in general, come back with a cycle and members will be more than happy to critique it.