I put my slow stick together exactly the way it says to in the directions but when i launch the tail seems to drag lower then the rest, i did balance it at 4 1/8 from the front of the wing and it seems to be nose heavy. can anyone tell me why this could be. It cause the plane to be kind of irratic in the air first its tail will drag and then the nose will dip down making me have to try and correct it and all it leads into is a nose dive and a broken prop. Also does anyone know of a good instructional website for how to teach yourself how to fly an r/c airplane. thanks so much