Testosterone can be administered parenterally , but it has more irregular prolonged absorption time and greater activity in muscle in enanthate , undecanoate , or cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection; absorption rate (and thus injection schedule) varies among different esters, but medical injections are normally done anywhere between semi-weekly to once every 12 weeks. A more frequent schedule may be desirable in order to maintain a more constant level of hormone in the system.  Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream. In addition, because estered testosterone is dissolved in oil, intravenous injection has the potential to cause a dangerous embolism (clot) in the bloodstream.
This is true. My bones are very thick. My wrists are much thicker than most, along with my ankles. I’m not sure what a shadow pinner is, I’m not sure what TRT is, and I’m only a little familiar with Jason Blaha. Although I can tell you I haven’t taken any illegal, banned, or anabolic substances. I’ve considered it once I stop progressing naturally. I’m also only about 8 months into training. I’m hoping I’m not at my genetic potential. I’m sure after several more years of training I’ll exceed these standards. I also have a workout buddy that I grew up with that’s built similar to me. Similar muscle mass and body weight who will also exceed these standards. Perhaps I’ll revisit and post some updates, along with him if you like, if I ever do a major cut and get down into the 8-12% range.