It has never been a secret that, all other things being equal, an airplane with a smaller wing will go faster than one with a larger wing, or that an airplane with a longer wingspan will climb better and be more at home at high altitude. A reader of the recent Lam Aviation press release or website could be forgiven for taking away the impression that the performance gains being claimed were due solely to the ailerons themselves. The fact that they were recorded on an airplane with an entirely different wing — and, for all I know, other differences — is not emphasized. Like Cheerios, which, as the box says, can help prevent heart disease and lower cholesterol as part of a low-fat diet, Lam ailerons can help improve performance as part of a redesign of an airplane. They are a valuable part — but still only a part.