Good combination would be left aileron with right elevator and right aileron with left elevator. For flaps you don't want them split as they have to both work together so I put them on a Y connector. You want either to both work or not work at all. PowerBox Systems from Germany makes a great dual receiver setup that uses the receiver that gets the best reception... not cheap but works well. Check their website and check out all the goodies. Most European flyers that fly the expensive equipment use their equipment.