Not Even Viagra Will Get You Going On Deca Only It Will Shut You Down Hardcore, I Would Go 60%test, 40 %deca To Be Safe. Also This Combo Is Unbeleivable For Growth, Just Have Some Anti Estrogens On Hand And You'll Be Fine. Also Some People Dont Have Problems W/ Deca Only While On Cycle, But When They Go Off A Year Down The Road Mini Me Still Aint Working.