On a 16 weeker, if you aren't getting overly bloated from it, you could run it all the way through. EQ will convert to estrogen, but about 1/2 as much as test. Some guys do just fine, getting a hard look while cutting on EQ. Some want to drop it out toward the end. Thing is, it works well long term so you can continue to get good benefit from it all the way through your 16 wk plan. The drawback is that it takes a long time to clear before you can start PCT. So you can run the EQ as long as you like, but run your test p, tren and mast for about 3 more wks after you stop EQ. So if you want to keep your cycle at 16 wks, dropping EQ at 13 wks would work well. Then PCT would start a few days after you stop test/tren/mast. For PCT, I would do a wk of clomid at 100mg, Then 14-21 more days at 50mg ED