4 weeks is a short cycle. Grab some Rebirth by BLR 2 bottles at 2 caps a day for 8 weeks it's a natural SERM that I use when on a more mild cycle as my bloods where i've used it i've recovered succesfully. Grab a bottle of either Iron Legion invictus or Reduce XT by SNS. Reduce XT is the tried a true and bread and butter cortisol control, however invictus is getting great feedback and i just incorporated it into my 12 week pct. Also, grab some Alphamax XT or you could wait until OL (Olympus Labs the same people who amre you 11-KT) releases their test1fy it's a beautiful T-booster formula i';d say Alphamax XT and Tes1fy are the best you can get in that regard.
So just to recap-
2 bottles rebirth 1 cap am 1 cap pm for 8 weeks
Invictus at 1ml daily for 30 days or Reduce-XT 2-3 caps daily.
Test1fy or Alphamax xt for 30 days at recommended dosage.
To be honest may be overkill, im not sure as to how suppressive 11-kt is as it just hit the scene, hoping you have pre bloods and post bloods, but in my opinion it's better to go overboard in PCT instead of staying suppressed.