There’s a lot of clinical data to support subq administration.
Testosterone Therapy With Subcutaneous Injections: A Safe, Practical, and Reasonable Option
AbstractContext. Injections with intramuscular (IM) testosterone esters have been available for almost 8 decades and not only result in predictable serum t
academic.oup.com
Subcutaneous Injection of Testosterone Is an Effective and Preferred Alternative to Intramuscular Injection: Demonstration in Female-to-Male Transgender Patients
This one looked at test e subq but then test c im for some reason, this one would be the biggest challenge to your theory
https://www.urology.uci.edu/pdf/Com...ersus-Subcutaneous-Testosterone-Enanthate.pdf