I've got a couple of hours in a real airplane. The problem with trim in simulators is that they don't affect your physical gaming joysick, only your virtual stick. Because of this, there will be a lot of wobble if your plane isn't perfectly trimmed at all times (unlike in real life, where the only wobble is your muscles getting tired), and doing this is impossible to do with the kind of tiny plastic controls we have. Then, too, the actual gaming joystick, regardless of brand, is a lot less precise than the real thing, as are gaming pedals and throttles. All in all, if you're using direct input instead of a curve (as I do for better control near the stall), you're doomed to wobble.
