57yo man with normal Test levels.

Testosterone, Total 599 ng/dL 250 to 1100 ng/dL

Free Testosterone 59.7 pg/mL 35.0 to 155.0 pg/mL

Want to boost but not the crazy levels you guys do. I just want to hover around the high-end of normal

Started doing 100Mg, 2 times a week (Tues, Friday) after 6 weeks did another blood and got the following

Testosterone, Total 660 ng/dL 250 to 1100 ng/dL

Free Testosterone 66.9 pg/mL 35.0 to 155.0 pg/mL

Estradiol 46 pg/mL 0 to 56 pg/mL0 - 56 pg/mL

Have the following questions

Given that the test has an 8-day half-life I know that 100mg 2x a week will give me a max of 389MG in my blood at any time. Taking the same 100mg 3x a week will give me a max of 571mg in my blood. I have these half-life spreadsheets in any want them.

There must be a formula that will give me an estimate of how many overall MG are needed in my blood to get to a specific ng/dL does anyone know this formula?

The other question is Estradiol the correct test for monitoring my levels?

Are there any good and good value testing labs in the Seattle area? specifically Redmond, Kirkland, Bellevue area.