This is a subject that I have debated with many people smarter than me (IE physics professors at M.I.T.) and we agree on several points.
1. If Bernoulli's principal has anything to do with creating lift, it is minimal at best. If you disagree with this, then explain the following... The wing shape that gives the greatest amount of lift is the under-cambered wing. In an under-cambered wing, the air has the same distance to travel on both top and bottom. Therefore (if you subscribe to the Bernoulli thing) an under-cambered wing produces no lift!
2. When the wing passes through the air (not vise versa) on a flat bottom, or under cambered wing, the shape of the wing forces air to leave the wing in a downward flow, and as we all know, "for every action, there is an equal and opposite reaction". (So much for not comparing Newton to Bernoulli)

Now getting back to W.A.'s original question, YES! You're right! The pressure IS neutralized! And, as was mentioned before, the lift is generated purely by angle of attack. By tilting the wing slightly you are directing the flow of air downward thereby causing the wing (and anything attached to it) to go up. it is the same thing you experience when you stick your hand out the window of a moving car and twist your wrist, your hand goes up or down.

So why are the "Sporty" models using fully symmetrical airfoils? Mainly for speed. If, for example, you want to do a "Split 'S'" (From straight and level flight, roll halfway to inverted, then add "up" elevator causing the plane to come down in a half loop and pulling out right side up going 180 degrees from your start heading) on the downside of the Split S, you pick up airspeed, now, when you try to pull out, a flat bottom wing going so fast will have a tendency to "Balloon" at the bottom causing a straight and level pull-out to be very difficult to maintain. With a fully symmetrical wing, the extra speed results in very little extra lift.