ORIGINAL: Flyin Beagle
I do not trim my planes for level flight at wide open throttle. All of my planes seem to have a comfortable speed at which I typically fly them. This speed varies from model to model, but that is where I trim for hands off flight.
Good tip!!
In other words, for a low level pass, you temporarily trim your plane for descending flight at wide open throttle.
Next, while doing your pass inverted, you will not need the temporary trim, because the regular trim will cause you to always be pushing a little down elevator.