I'm fairly new to trt but I use both but at half your dose. It has made a difference for me. I'm not sure it would counter act super high E2 levels but it has helped with my symptoms.
Make sure the Lecithin you are taking does not contain soy. Most Lecithin has soy in it and soy is estrogenic. Lecithin is good for you but buy the Lecithin without soy, like Sunflower Lecithin. I'd say the 200 mg of DIM and 500 mg of Calcium D-Glucarate is fine.