designer steroids effects of test and estrogen?

[loftus44]

Just trying to understand more about prohormones and PCT. First i,ve heard that these substances do not aromatize. IF so why do you need a SERM after a SD cycle if when the cycle is over you have low test and estrogen? Would an AI block most of the estrogen as it increases with the test, and are SERM,s a more precaution to avoid chance of gyno? I've done several cycles and have used novedex xt, AI PCS, or another test booster and have had no probs. I do have torem, and wonder what PH cycle would definetly, need this, or should I have used it all along? thanks for any replies!