Now THAT I can answer. In WernerSobe's and my first video, that was patch 1.2 and we were using the 360º Bearing Plotter mod. Now I don't use that because the little boy has grown up into the
3000 Yard/Meter Bearing Plotter for SH4UBM. It is twice the diameter of the one in the videos and rescales itself into meters for U-Boats. I wouldn't be caught dead using meters on submarines and prefer to use native measurements on U-Boats.
It works with all mods without interfering with anything or harming any innocent animals.