It is essential that u don't take a dose after 6ish... Your body produces mist of it test at night so your highest levels are early on the morning. So if u induce a aas last in the evening your body is apt to produce less test. That is why with pulsing if you work out in the am it works out the best. Because by night tome the conc of the aas has decreased and the body will keep up a more reg production if test. Hence avoiding shutdown or being less shutdown at the end of the cycle.