I am about to do a D-bol Test E Deca cycle. My cycle itself is all planned and good. My question is this. Which is more effective to use Proviron or Arimidex in preventing Estrogen and allowing more free floating test in your system while cycling. I am going to be on 12 weeks and would like to use it all cycle long. Cost wise the Arimidex is much more affordable however if it is not nearly as effective then I will bite the bullet and buy the Proviron. Thanks for your help. I will be using Exemestan for three weeks after for PCT