And yet still pointless. Steroids do not act locally. Doesn't matter if it's test or not. I'm more than familiar with the theory. Let's deal with the roid part. I'll cite somewhere else first: The steroid doesn't work at the point of injection, in reality it does nothing until its been processed by the liver.
Having a small volume, let's use Masonic's 1-2ml injected as some sites suggest (down from above into a delt head) works, at best temporarily. So ok for shows as a filler. But there are other ways of eliciting a temporary swelling (escline etc).
Another part of the idea, supposedly part of the thought behind low level SEO use, is creating a void which can be filled with tissue. To use crude metaphors - you make a hole. The hole gets filled with flesh. It's not quite muscle to begin with (you wouldn't wanna biopsy lol) but MIGHT be later on. But unless you're jabbing test frequently into the same spot over a LONG period of time I can't see 1-2ml working that well. And we know there are issues with scar tissue.
Oh and please tell me someone who knows what the f**k they're doing is jabbing cos, for most, self injecting into a delt for a site injection purpose is a cack handed affair at best.
All in all - a no.