I chose nandrolone based partly on Sherk getting busted for it. I mean, it seemed like it worked for him. I found it greatly (w/sust) aided my ability to power my way through everything round after round. My top game and explosiveness were both stellar. However, now at the end of the cycle, I'm finding it's kind of screwed with my game. I go for power moves and they don't land, but since the guard was where I spent most of my time previously, it's not like I can't fall back on that.
Anyway, I found that my performance was massively enhanced by steadily increasing my dose for 3 weeks (200mg week 1, 450 week 2, 750 week 3), however, after the peak of performance in week 3, I felt tightness in my chest and other scariness and decided to scale it back. Regardless though, I think that the cycle was like a rollercoaster and if I'd designed it to fight at the highest point, I would've fought much better. I was able to do things in training I'd never accomplished before on that day, I only wish it'd been in competition instead, but I'll make sure things line up that way for the next cycle.
Do you use roids specifically for fighting (ie, not for weightlifting/muscle gains/whatever)? If so, what do you use and how does it help you?