"In terms of an aromatase blocker, testosterone is one of the few compounds where Proviron may actually be preferred over arimidex. The proviron will not only reduce estrogen and can be used for extended time on a testosterone cycle, it will also bind with great affinity to sex-hormone binding proteins in the blood and will allow for a higher level of free testosterone in the body, thus improving gains. Usually 50-100 mg will suffice"
That is from bodybuilding.com. I was just wondering if arimidex or proviron would be something that i would NEED on a test enanthate only cycle. I will be doing 10mg ed nolva throughout the cycle.