I could give you some made up science explanation but for me, honestly on paper Sust looks inferior to say enanthate, for some reason my body just likes sust. I’m guessing it’s bc it’s a steady release. Now when I get to last weeks I do drop it for prop or suspension so I can control the water/seperation easier. But it’s more of a hassle and definitely more of an up and down feeling for me. There r guys who say you can’t feel test going up and down unless you’re really dosing wrong but I can with prop and enanthate. IMO if ur taking cyp why not take sust?