I agree with CoastWatcher and Vince.
A testosterone level that can ensure the following will be reasonable:
1- A hematocrit elevation that does not require more than 3-4 times per year blood donation or phlebotomy.
2- A estradiol level (sensitive assay) of under 45 pg/dL. This is debatable, however.
3- Blood pressure under 130/80.
4- HDL over 40 mg/dL
5- A PSA under 4
6- Good quality of life and libido
7- Low water retention