Very well done, sir!
In fact, your video comes in very handy. Started yesterday to take a closer look at UBOAT, although I own it for a very long time.
Actually I prefer SH5/TWoS because there are too many annoying things in UBOAT that pull me out of immersion. And that will probably stay that way for a long time. I know it's EA and (hopefully) things will change. So I'm trying to give UBOAT a chance once in a while.
Anyway, I am looking forward to trying your method later.
Thank you!