test does work.. but it has a great diminishing return.. the more test the more one has to take other compounds to combat all the estro sides.. again "robbing peter to pay paul".. people bitch about tren and the "many" sides that it causes.. but when ya look at the fact that there is no estro related sides, no dht issues and progest is only a issue which is, for most, dose related (tren dosages have gotten silly with many over the last 4-5 years)..
i have talked to many euro guys over the years (many world champ competitors ect) and you would be surprised at the low dosage test they use.. now that is not to say that they dont use large amounts of deca, orals, mast ect.. but test is not their main compound..