After about 3 months on BAT therapy and reading Friedman's book, I thought it might be a good idea to ask my onc to check my estradiol (E2) levels. He agreed.
While the PSA continues to drop (roughly 10 to 5), I nearly s*** a gold brick when he casually mentioned my E2 was 170 (normal is about 20-40). This is despite strong doses of DIM and broccoli sprout tablets. (So much for the "natural" approach.)
Anyway he in a calm oncologist voice said, "Your body is a really efficient converter of T to E2." Then he wrote a script for Armidex without hesitation.
Bottom line - Get your E2 levels checked when on BAT!
PS I do recommend "How Your and Your Doctor Can Fight Prostate Cancer, Breast Cancer and Alzheimer's" by Dr. Edward Friedman. I suspect many in the SOC camp may not be a fan, but I do think there is merit there in his theory about the role of E2 and PCa.