Most everyone recommends strict adherence to Pheedno's PCT protocol, which is Clomid 100mg, Nolva 20mg and Arimidex .25mg. Far be it for me to challenge the conventional wisdom, but I would be interested to know why Letro is not a decent, or perhaps even better, substitute for Arimidex. They are both AI's and Letro is supposed to be stronger. Is it just too strong? I've been searching the site but can't seem to find an answer. Anyone know?