Manual targeting for me is this with TDC off:
1st. Choose the impact angle that you will shoot (70-110 degrees best).
2nd. Choose the distance that you will shoot.
3rd. Choose the number of hits.
4th. Choose the spread angle
5th. Choose torpedo speed and run depth.
6th. Move the submarine accordingly so that you will achieve number 1 and 2.
7th. If there is a last moment change, adjust it with gyroangle (up to 25degrees or abort) by moving the bearing dial of the TDC.
A less hardcore manual targeting is feeding TDC, while in parallel moving the sub to obtain 000 gyroangle.
For manual targeting, there are sooo many threads for SH3 and SH4, you will find them if you use "search" tab.
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