I'm saying, it is working on my ET 19 and 15mm bridge plates as a serviceable riser (add one layer of gaff tape between the bridge plate and Manfrotto), to perfect the height) which allows me to use my Redrock mattebox and O'Connor follow focus without having to invest in whole new plates systems to achieve the right height.
I'm only suggesting it as an inexpensive solution until more options are released. To avoid the cycle of buying something in the early innings, then wishing I had waited. This solution, for about $50, lets me wait and still use all of my original RED ONE accessories. I spent $900 on each of these plates, and I'm not ready to retire or replace them yet. So I guess the answer is yes, that is what I'm saying...at least in regards to using those accessories. I can't speak to others. Your mileage may vary.