Yes, I'm doing it on my cycle right now. And the best part is since you need to take tren injections frequently, you can space out your sust to make the best use of the prop in it. I'm taking 75 mgs of tren acetate a day, and mixing 125 mgs (half an amp) of sust with the shots 4 times a week. Shots are completely painless, and I started seeing the effects of the sust immediately (was up 10 lbs by day 10). Good luck bro!