Not disputing that, just that the acceleration is not constant on take off. I know that it isn't in a fixed prop either, it's just more noticeable (to me anyway) in a CS a/c. Maybe I have a sensitive seat of the pants. Have you never noticed the surge you get at take off at around 45 knots in a 182 as compared to a 172 ?
The 172 I fly has the A3A donk at 180 hp.