Can't keep middle of my back flat?!

[Jude]

I read the articles, stickies, books, watch countless video clips, but still my back is rounded. Any suggestions on how to set my back would be appreciated. Thanks.
https://www.youtube.com/watch?v=w4RNNoM1x34

[Michael Wolf]

I am not being condescending when I ask this, but we've seen this so many times that it needs to be explored: you say you've watched the videos, read the book, sticky, etc... Have you tried to set up in the way we recommend?