Rule simplicity is one thing but I can’t agree with one size fits all, on that basis why have different speed or gun effects?
If the speed of a a boat is such a minor factor, which is what seems to be implied, then surely a boat could turn it’s maximum amount at any speed.
Perhaps you would have been better of limiting large vessels to an even smaller angle of turn, one where they would turn less at full speed than a more agile vessel at combat speed, perhaps 20°, or if one size fits all was the goal, why not have just a 45° angle of turn, but less manoeuvrable large vessels only get two turns, one at slow speed and one at combat speed?
