Totally agree with this. I saw steady gains in the 8 min format and when I transitioned to the Ramp Test I saw (small) declines in the test result. Reading this thread really helped me. I too realized that 19:30 was the crucial tipping point from other forum members. With this knowledge I was able to push through the initial pain resistance at 17-18 mins with the goal of getting to 20. This really helped a lot and I haven’t fallen short of 19:30 since either and my FTP has ticked up again. I think it’s similar to really tough intervals, you can be hurting half way through, but the knowledge of when the end is helps you through to the end. The Ramp Test has no defined end, so I think it’s harder to ride out the pain.