I'm not running any AI... Literally just .5 of Test400 every 3rd day. I'm already at 6 weeks into my cycle planning on going 12. Is it too late to start an AI? For my pCT I have Liquid Clomi and liquid nolva
test400 is 400mg per 1ml and most only use 400-500mg every week on their first cycle and many after ( even i go with only 500-700mg ew) so your still taking 400mg ew and will need an AI, you are taking about 3-4x the amount of test you would normally be producing. even people on hrt (only 100-200mg ew) need an AI at times.
an AI and controlling estrogen is more than just about gyno/tits, having high estrogen can cause alot of other issues than simple using a SERM on cycle WONT fix. mood, water retention, libido etc.
I highly rec you get AI dex and use 0.25mg eod. its not too late to start AI and i would rec it personally. you can get liquidex and use 0.5ml (0.25mg) eod.
sure you are not using 700mg + of test ew but anything over 200-250mg ew tends to need some sort of AI to keep estro in check. I would rec it.
what is your test400 made up of? whats the esters (should say on bottle) is it teste and testcyp? teste/cyp and prop? mostly prop? mostly enth? its likely teste/cyp and some prop maybe. just curious. but if its teste/testundec then you may need to wait longer to start pct for i to be optimal.