FWIW, I wasn't naturally low SHBG, prior to trt I was mid 40's SHBG... only after starting TRT did my SHBG drop to very low, even on low doses of Test my SHBG stays low.. However, I did do a 4 month trial of 20mg Cyp ED SubQ and my trough was TT 745, FT 26 and SHBG raised to 28, and my E2 also...