Reversal of testicular atrophy can be achieved with 250IU ed during pct, most people use it during cycle though, and injecting 5000IU at once is likely to cause an increase in estrogen levels and subsequent side effects . . . . .

I´m also a believer of more is not necessarily better but all those doses will do is shut down your hpta so you wont have any testosterone in your body . . . the hormone which is responsible for making us men, you can probably see why this may be a problem.