I think it is implied without going into all the technical details.
They specifically mention keeping the engine running, and they mention that the intent is to keep the internals from spinning up,
Which can only be done one way.
I get how the planetaries create what I call the unintended ratio
That over spins the high gear drum because the sprag is not on in 3rd gear. What I find interesting about your post is I know all kind of
Ls Mopar hemi guys that put in a turbo 400 cause they think 727s blow up and are not safe. What they don,t know is that turbo 400s can blow up too lol. I will call Joe at tranzact and verify if the pro comp nitro brake I bought from him keeps fluid pressure at the high gear drum or just releases everything. Apparently he worked with griner and co developed the griner brake. His brake looks identical
To the griner and he supplies tci and coan with his design.
