2 years ago i started my first cycle at the age of 17. The purpose of the cycle was to build strength and power for an up and coming powerlifting competition. I used deca and enanthate 2 shots a week for a month. they worked pretty well and i have done about 2 course since mainly consisting of deca/sust. The problem however is that on my last two courses i wasnt training that often and they seem to have done more harm than good. Because even though my last course was over a year ago, no matter how much i diet and train sensibly i cant seem to pack on mass. I am just wondering is this something to do with my test levels being supressed or even amino acid receptor sites being de-activated? A reply would be greatly appreciated.