My RD6000 is what is now the equivalent of the Sport, I think. When I bought it the Super and Sport models were not being offered only the one model. It has 2 p-mixers. It also has fully digital trims but it is only a 6 channel and the sixth channel is occupied by the GY-401 gyro. Would I be able to start out with manuevers such as rolls with the current set up? I currently do not use any of the mixer functions, so they are both available as needed.