For reasons that would take to long to explain, I have both set-ups. I set-up the second plane wing with dual servos, just for the experience in putting that type of set-up together. As the other guys said (and they have a lot more experience than I do) you can't tell the difference. Don't try and do a roll with the training aids on the plane. Once you are comfortable, take that stuff off and you will notice a big difference in how the plane flies. My suggestion, the radio that comes with the RTF is pretty simple. If you are planning on buying more planes in the future, buy the ARF. Then you can buy a better engine (mine RTF came with an OS 46 FXi) and radio than what comes with the plane. You will probably spend about the same amount of money, it will just take you longer to put the plane together. But, you will also get the benefit of learning a little bit of how to assemble a plane. Good luck either way. Hope you aren't to confused!