What Bruce said is so true. Case in point: The Nexstar with the "stuff" installed (wing tip spoilers and brakes). Removing the brakes made a very different feel of the aircraft and it required an awful lot of trim to fly straight and level. In fact, after flying it without the brakes, and trimming it for straight and level, I landed it and spent the next several minutes adjusting the clevis to put the stick back to center with the elevator trim dialed in mechanically.

CGr.