Even if it will shut you down faster, it does not make a difference - no matter the age, everyone will end up with suppressed natural testosteorne production on cycle. What matters is running a proper PCT, so if you will do everything as it should be done, and won't go cheapstake on the PCT, you will be just fine. I am sure that you will notice a huge difference with the cycle, since your natural testosterone may not be as high as when you were younger.