I just started DTF printing. I have an Epson ET-4800 with sublimation ink in it. I am using the Yamation film and powder. I also have a circuit press 12x10. I am printing the design and immediately putting the powder on it. I then pre press my shirt and immediately put the design on it. I am pressing it on 320 for 30 seconds and medium pressure. I keep getting areas where it seems to not be sticking. The first corner I peel looks amazing. Then it just goes down hill after that.