It did work well Pick. Looks good.
My second attempt with the Denman, this time using it 'normally' (as in, not finger coiling with the brush) worked well too but it was hot and humid yesterday so pic 1 is with last bit of cast on after sleeping in silk cap (washed Wednesday late afternoon, wasn't fully dry before going to bed) with it and by the time I managed to get a picture of it scrunched out the heat and humidity (another tropical day here yesterday) had already done its thing 😑
My only issue with the Denman is that I have to style rightside up and it gets very flat at the roots. I'll try scrunching upside down next time but I've also ordered these from South Korea as root clips don't work for me as my hair is fairly straight and it just gets dented and then falls flat with a dent in it 
Sophie, I think they discussed it on that science panel. The CGM just 'works' for a lot of people with very abused hair because you remove all the abusive elements (heat, dyeing, etc. Not necessarily the no no ingredients according to CGM), regardless of what you do hair health woul improve. It's a bit like when you damage your skin barrier, you're able to use very little so it's best to eliminate almost everything as that gets you back to a healthy place quicker but it doesn't mean you have to remain that restricted forever, you just need to not be so excessive with what you subjected your hair to once.
Anecdotally, I have found that avoiding polyquats has been hugely helpful for me, my love of clarifying washes has diminished. I washed with my gentle sulphate shampoo after I think five sulphate free ones and I needed so very little, all it needed to do was wash not tackle any buildup. It's probably why I've also been able to use sulphate free shampoos where I've always struggled with them before. I know not all polyquats are the same but I'll wait until I'm in a very steady place before trying anything with them in again.
Pupsie, I remember reading something about struggling to form a cast but I've forgotten now what the cause was. May have been buildup related?