To clarify, I felt the only reason my cardio improved is because I was doing so much of it. But that's part of my point, i was on 20mg of SD and 30mg of PP and I could easily improve my cardio, they did nothing to impede it, but that's just me...
Someone mentioned TREN above, again i used tren on the same recomp cycle and cardio was fine. PH tren of course. Steroids don't seem to mess with my cardio.
Anyway, I was doing elliptical, lots of elliptical. I was getting in cardio about 10x a week, while on stacked methyls, it allowed me to shred tons of bodyfat while getting stronger, it was awesome.
My body loves superdrol, lol... Most PH's i tried were weak to the point of hardly effecting me, but Superdrol is awesome to me. Most people reacted so bad, I was scared to run it, i sat on my bottle of Methyl Drol from 2006 until 2008 before I tried it.