akdavis, you seem to be an advanced radar user.

. I need to make up a little mini manual of how to use the scopes, like how to differentiate targets on the same bearing with different ranges and all the stuff like that in the proper radar manual.
Stock game's bearing resolution on the SJ radar sets is 9 degrees, which is ahistorical. Actual bearing resolution was 5 degrees and makes it easier to distinguish targets on the A-Scope. The PPI stock scope is too good, with the contacts being dots rather than arcs.
Using the antenna bearing indicator, which is loacted above the A-Scope and a high res texture marked accurately, you can get bearing to within half a degree of the leading edge. As part of my testing, I set up a mission in heavy fog, rain and at night with no moon - it's what Radar Training Part 3 used to be like before I moved the submarine closer and have made 3 hits out of 4 with a three degree from 6,000 yards. If I take the time to plot a track and get the correct course and speed, I'm fairly confident I'll get some hits.
I've also used the antenna bearing indicator above the A-Scope to plot tracks from radar depth and that works very well too.