hi there Bob - glad to see you back from your trip you have missed some fun
No I was not disagreeing with you, nor was I doubting your word.
Like yourself I have done some experiments on models and I have come up with similar results as yourself. There are only 2 or 3 models which I know throw this rule to the wind - and that is an RAF crash tender 2564 which I built and it didnt matter if the props were turning inboard or outboard - it still takes an age to turn. The only way I could think of to correct the distance it took to turn was either to increase the size of the rudders - because they are scale size or go for independent control of the motors. The other one is a quadruple shaft with single rudder and this was an embarassment this one. On inboard turning props, I could beat a straight running model - with the rudders either port or starboard it just refused to turn - and this model has independent control of motors.
It wasnt until I changed the direction of rotation of props from inboard to outboard that I could get any degree of manouvreability.
Anyway, enjoy your leave Chief, nice to see you back on the Forum, unless you are out there on the horizon - working on your laptop - in that case you should be watching your ship
Aye
John E
BLUEBIRD