well fine! but if it does increase the potency of deca regardless of if you want to have your dick become imobile and take forever to come!! i know this because when i took deca alone i would have sex with my gf and it would take me forever to finish and i had to really concentrate and i definatly lost my sex drive towards the end of my cycle and now that i took deca again with 500 mg of test !! ive been a fuken sex animal!