First, you are on a weird dosing schedule. For our purposes, 100mg every 5 days equates to 140mg per week. Any reason you don't just inject every 3.5 days? Just doing that sq would slightly reduce your E2.
1- simultaneously reduce total T dose and add Adex. At these FT levels you may run into hematocrit troubles down the road. So, possibly reduce total T to 120mg/wk and add 0.5mg of Adex twice weekly.
2- keep T dose the same and just add 1mg Adex/wk in divided doses.
Either way, you'll need labwork to confirm in a month or so.