Dorsal Pushup progressions

I know this isn't an integrated part of H1 training but I didn't want to discuss H1 Wrist prep programming or progressions on another board. since Dorsal Pushups are a little wierd performing on the wall in a "walk" sort of fashion, what would be an adequate progression to follow on this?
 

begin in the wall, work upto 5x5 mastery 

1. what do I do once it is time to do the long hollow portion of the work? 

2. go straight to the floor and work them in the kneeling position?

I'd like to keep these pushups in my mobility drills after completing the WOD to supplement dorsal mobility during undergrip dislocates, which I need help developing that full ROM. 

Im not convinced this is a great approach K. Seems to me emphasizing the rotation needs to come first, which is at least partially covered in through stretches. jumping straight into pushups might be reaching a bit far until one has that initial mobility (unless you rotate like awesome, in which case go sir go)

Charm said:

Im not convinced this is a great approach K. Seems to me emphasizing the rotation needs to come first, which is at least partially covered in through stretches. jumping straight into pushups might be reaching a bit far until one has that initial mobility (unless you rotate like awesome, in which case go sir go)

i'm not at 90/90, im rotating more inwards now, than when I was working the pushups exclusively.  i will post a photo of my current ROM as an aid to gauge how healthy embarking on this might be.