nah.. that's how it works.
you take dbol or anavar or eq or whatever, and even though it's not testosterone, you're natural production will cease (or at the very least drop your levels below 100).
body produces 8-12mg/day.. so lets low ball and call it 70mg/wk. now, if you inject 70mg/wk, your natural test will but cut to shit after 3 weeks... try going off and getting bloodwork a couple weeks after your last injection, you'll be wayyy low.
same with other AAS. take 20mg halotestin by itself for 3-4wks and get bloodwork, you'll be sub-200/300 at least.
well thats exactly what im saying, lol.
but testosterone production only drops to 0 if you inject MORE than you would naturally produce.
if you inject 30mg test a week and naturally produce 50mg, you are not going to have zero testosterone production. you will still produce as much as it needs to reach your "natural" amount of test.
obviously this is the same with other compounds, but you cant compare them on a mg to mg basis.
obviously if you inject just 1mg methyltrienolone 5 times a week your testosterone production is probably going to be zilch because methyltrienolone binds like a bazillion times more than testosterone.