Thank you, razark. I did play with the AoB dial before to get the numbers to match, and yes eyeballing does work and it works well mostly. I'll mess with it some more this afternoon and see if I can better understand how the trick I remember but don't remember works.
The calculation gave you an exact number to set your AoB dial to from the start so that you did not need to fiddle with it...unless, of course, your target changed course.
If I figure it out again or remember, I'll post the formula here. It was very simple, really...so simple I forgot
