very true, however i've run those together w/no test and my sex drive and performance didn't fade at all. but i'm an exception, not the norm. if you must have an active dick, then take test to be certain it'll still work
I think it depends on the deca dosage. With 300mg of deca a great majority of people don't run into any of the deca sides like deca dick. With 600mg you will probably run into the sides and since you will be running it with tren you will also have to deal with the harsh tren sides.