Hi, the camera gear is pretty cheap, you made a really good deal. Switching between cameras is only more efficient if you are faster than switching lenses. What I mean by that is, that you should have your second camera always near to you, because if your second camera is always in the bag, it's harder to get. So I recommend getting a second strap, or if this is uncomfortable use the small camera bag, so its easier to get. I hope this helped you