most guys don't realize that even when they get on a cycle of test and get blood work done 6 weeks in , the total ng/dl of test is the combined endogenous and exogenous test. your not even fully suppressed at this point and your still making natty test. the body has been making natty test naturally for decades.. there is not some magic switch that is suddenly switched to turn that off just cause you injected some test . full HPTA shut down takes quite a long time

also why I'm not a fan of doing PCT after every single cycle.. its over kill.

you can run test suspension off and on pre workout and not worry too much about total HPTA suppression or doing any sort of PCT