I just started my first single esther cycle of Test E. My first 3 cycles I did all of Sustanon (sust), and only at 250mg. Yes dumb, because I found out Sust should be pinned eod or e3d. But, I was 235lbs and I got my bench to 405. Amazing gains on some BD Andropen 275 also. I have found however, as I do more cycles, I need more to get the same gains and feeling as when I was on 250. I also believe the quality of your gear has a lot to do with it as well. Did last cycle at 600mg of sust and my cardio was great. Doin 750 of Test E this time around, fist pin frontloaded 1gram lastnight. Still doin cardio, so I am interested to see how it gets affected.