In the first 30 seconds of the first video, you are traveling level, your plane gauges show this, HOWEVER, the aft section is riding down, and the fore section is riding up, like a speed boat at speed.
From 2:10-2:28, the submarine is traveling level while submerged. The view perspective should be riding level, not in the ascend perspective. If you would have went into the conning tower at this point, the view would have been perfectly level. Not at an angle like it is currently in the Command Room.
The bottom video, of the S boat, is fine. It does not ride in the ascend perspective when the boat is traveling level. That is because the value in question for the S boats, is set to zero. That same value, is set to zero in all submarines, in every other mod out there, including TM 2.5.
Here is your Fleetboat Command Room while traveling level, submerged or surfaced. (Gato)
The same command room after the fix. While traveling level, submerged or surfaced.
