[>>>Core Patch 0.5 Feedback Hotfix v90<<<]

Surely the solution is that a ship can only fire on an enemy ship it can "see", either visually or by radar. Otherwise we are pretending WW1-2 era ships have modern datalink systems, and that flies in the face of any pretence of realism. 

[Cruising speed accuracy]

21 knots for the QEs may have been because the rest of the battle fleet could only do 21-22kts? Hood's gunnery officer reported that above a certain speed (mid 20s I think) vibration in the spotting positions/DCT became "excessive", presumably making accurate shooting more difficult. I think I remember reading something similar regarding vibration on Invincible and Inflexible at the Falklands too.

[Torpedo accuracy and circle running.]

HMS Trinidad got hit by her own circling torpedo in 1942- though that was in the Arctic and the torpedo gyro may have frozen.