You know how there are positions for planche and the levers before you get to the actual thing? Well, how about manna? How can you check your progress in the manna?
I tried to lift my legs up as high as I could from a MSH, and it looked like I was well on my way. My shoulders slouch forward and my back has a huge arch, but it's starting to look like I could have it in a few months. If I train my flexibility, I could get farther too. My legs are huge compared to my skinny arms, and if they would counterbalance me, I would start to make fast progress. Right now, the best I can do is ever so slightly past vertical... Not much of a help, but good. I'll try to get a picture.