I dont think you will notice any difference between 400 and 500/week. If you want to up the dose of EQ i would make it 600mg/week. But even at 400/week you will be pleased.
Thank you very much guys and Mr X, one last question if you dont' mind, do I need arimidex for the 400mg eq and 50 mg winny ed only cycle? (I won´t add test this time due to some undesirable sides i have with it)