Short answer, since I'm low on time:
Did you *activate* your PK? Asking cause I can't see it in the picture, the red button on the lower left is not visible.
The first dial should indeed show AOB, I think. But this is unimportant*. What is important for solution checking is the lower dial. The indicator here shows the gyro angle, and the relative target bearing is *at the 12 oc position* of this dial. Looks pretty good to me in your pic until this point. Computed relative and sighted relative bearing are both 56.
Also, in your example the bug is not at work; otherwise, it would show "0" at the 12 oc position (although the TDC would still be working true - it's just a wrong readout).
*When the relative and sighted relative bearings stay the same, the torpedos will run at the proper intercept course no matter what. You could have a wrong AOB, for example too small, but when you also have a wrong speed, in this case too high, those both errors may well cancel each other out and the bearings stay true. This is why you could simply doctor on your solution by changing the speed data until bearings fit, if the dial would not be bugged as often as it is. Would be cool if they fixed that.
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