What would you consider responsible usage? Not mocking or kidding, I'm curious
That's the million dollar question isn't it!!! I def say its specific to each person...the second the negative sides/symptoms show up, I think you've passed that line of appropriate usage. My opinion would be somewhere under the 500-600mg/week range...but for some that's way, way too high, for others they're fine. That seems to be the issue with optimal dosing is that it's still NOT an exact science.
Or you can just say F*** it and do a gram a week of tren and 30IU a day of growth
