Thanks guys, As a tech update, I just finally finished all my wished research. The type IXd2 take it´s final development and now i have a finished binary pattern what will make the work on others uboats much more quick.
The main additions were that new controller was you saw on this video and also some nice touchs just for the emerging times or when you really goes deep by a big wave.
In these extrem conditions, (and) when you emerge, you will see not only what the video showed but also a more intense water stream on the nose. Very RL like!
I guess that the finished Type IXd2
WITH the type VIIc/b will arrive in more or less 3 days.