You get a little hit from the prop, but you have to pin EOD to keep the prop working. The big problem is it takes WAY too long for the long esters to build up, way longer than E or C, so you're getting a good partial up front, but you don't get the full amount for, I forget what it is, 6+ weeks I think. Same problem on the back end. All the short esters clear but you're stuck waiting for the long ones to clear before you start PCT. You're much better off running E or C as your main, and then you can front and back load with separate prop or TPP if you really want. That way you can control the blend amount and taper it up and down. The big thing is you do not want Test Decanoate in a cycle.