150 mg of fina a day will reduce shbg's (which yields more free testosterone), and since it has 3.5X the AR affinity that test does, running tren to test in a 3:1 ratio will leave a great deal more test free to be acted upon by the aromatase enzyme in your body, thus yielding a much higher estragen level than 350 mg of prop a week would normally produce. Consider the fact that elevated progestin levels can increase estragen sensitivity and you are using over a gram of tren a week, which will elevate progestin levels... thus estragen is still to blame in your scenario.