I am on trt. At 200 mg a week of test my Estradiol using the ECLIA methodology through labcorp tested high at 52.3 on a normal range scale of 7.6 to 42.6. Using the Labcorp Estradiol Sensitive test I scored slightly high at 38.5 with normal being in the 8 to 35 range. I had the doctor lower my test dosage to 175 mg to avoid going on an AI. The problem is at the lower dosage of test my testosterone level drops from the 800s to the 600s. Obviously I would prefer to be on the higher dosage test for this reason, but for health reasons have no interest in taking a prescription AI of Arimidex, thus I was contemplating trying Letrone. Has anyone used this instead of an AI while on trt? If so, about how many points did it drop your Estradiol reading and at what dosage of Letrone (1 or 2 caps)? My hope is the Letrone might suffice to get me into the normal range on 200 mg test.