If we all step back and think about this: Men of all ages, increasing % wise with age, have these issue WITHOUT having played fast and loose with AAS for, some of us, decades and decades....................................for all we know many of us would have been having these issue sans gear, heck if anything for some of us the gear may have kept it at bay for years, WTFK?
For what it's worth I have tried deca twice in the last two years from the compounding pharmacy and even 50mg/week shuts me down sexually. This is very unfortunate as even at just 100mg/wk the fullness and roundness it provided in three weeks was fantastic. I may have to try it again with ancillaries to at minimum use the bottles I paid for, they were NOT cheap.
I used 1-test back when it was OTC and even then it was regarded as a net negative for libido/performance. Back then though many were running it with not testosterone so that is to be considered.