My arthritis has really been bothering me lately and I have a problem holding the EVO controller with the Ipad. It is top heavy and it puts a strain on my hands. I have seen this on another forum. I took the camera attachment out of the trypod and removed the 1/4 inch bolt then using hot melt glue, glued the attachment to the back of the controller. By using this along with the photographers hood to cut the glare I can fly in perfect comfort. I prefer the controller for the XSP it is balanced better. l understand they made the EVO controller for the phones but some of use older gentlemen need the larger screens.