theres a difference between putting 1-2ml's in your bis, tris, traps once a week and what nasser would do to himself with site injections in his back.
nasser's back (or lack thereof) was 99 percent his genetics anyway. flex, kevin and many others did the same shit to their bodies and they looked fine.
Yes Nasser's thick skin in his back was genetic. That was the problem mostly, not a lack of size. And sure, there's a difference in a once a week shot and shooting a bodypart frequently with a high volume of oil. But every time you inject you are doing microscopic damage to the muscle. The more you shoot the more scar tissue you will get.
Look at the delts of many/most national level competitors and pros and see how they are just a mass of scar tissue without a striation to be seen. Ugly lumps and bumps.
The high concentration/high solvent gear is more damaging than lower dose gear, e.g HG test.
I could see a touch-up with something like Esiclene, if it was still available, just before a show being advantageous but trying to build a muscle with site injections of gear and plain oil = fail.
Milos royally fucked up his arms himself with oil. I always thought this was one of the reasons he stopped competing, whenever it was that he stopped (can't remember). I bet Milos would still look amazing, minus the arms.