I normally don't use the notepad; I like the plot the convoy's course, then surface outside of visual range and race ahead. Once I'm about 8-10 km away from the convoy, I'll turn in and set up for a good 90 degree AOB shot, manually inputting data to the TDC.
If using the notepad, I'd set up a solution on the lead ship and use that as a base. I think all you have to do is reset range for each target (as this greatly affects the gyroangle). Unless the convoy is in a panic or zigging, AOB and speed should be the same. Still, it's best to get into a position that presents a 90 degree AOB regardless of what method you're using...the notepad only becomes harder to use if you're not in good position.
-akula-
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