Ok, let me get this right, I have a dsi xl, dsi, and a regular ds, I have 2 ar's I play my 4th gen. game on my dsi, my 5th gen. games on my dsi xl both with the ar's in them as not to change my fc, I don't use my ds, but did keep it thank goodness cause of B / W 2, explain how to trade with that set up please??