To reply your post, I think it's normal that you need a transmission to practice it? So it's probably not 'too bad.'
Hehe, it is too bad if you'd like to actually practice it.
I don't know what they are, but if it's tsa lung practice, even you got WANG and LUNG you wouldn't be able to practice it properly.
No there's just some visualizations. But why wouldn't you be able to practice it (edit: I mean tsa lung) properly even with wang and lung?
Allowing for Mutsuk's very helpful comments about unreliability issues in the translation, I'm still wondering whether it's worth reading. Any thoughts?
If you're interested for practical purposes and have transmission then it's worth reading. If you don't have transmission but are curious I think it's still worth reading as it is an interesting text, but I don't think there are many practical things in it.