Yet another dumb question about manual targeting

[Platapus]

I was reading the SH3 wiki and came across some information that is either inaccurate or confusing. Since smart money will always back my being confused I wanted to ask the smart people here.

Reference: http://www.communitymanuals.com/shii...nual_Targeting

The TDC requires four pieces of information to calculate the correct gyro angle:

1. Angle on bow (AoB) - This is the direction of travel of the target relative to your u-boat's direction. See angle on bow for more information.
2. Bearing- This is the angle at which you observe the target.
3. Speed - This is the speed of the target. More precisely, it is the relative speed between you and the target.
4. Range - Although it does not effect the gyro angle as much as the three above, range DOES have an effect on the angle and thus checking the range prior to shooting is always a good idea.

Is that comment about the speed being the relative speed between the sub and the target and not just the absolute speed of the target correct?

The targeting instructions on the same wiki page do recommend that the sub be stopped when taking a speed calculation.

Is this right?