What's up everyone? I just placed my order for two Professional model Phantom 3's. I was thinking of changing my order to one Advanced and one Professional. I just wanted to double check some things. 01) Will my iPad Air 2 fit the holder with my Otterbox on? 02) Will the Professional model battery work in the Advanced model and vice versa? 03) Other than the camera, what's the difference? 04) I know this is a dumb question. Can the settings in the Professional version be changed from 4K to 1080p? I want both 4K and 1080p. If I can change the Pro settings, then I'll leave my order as is. I do know that the Advanced model is 1080p only. I was just thinking that the Pro version would allow both depending on ones needs. I know I should of researched all this first. I just got word about the P3 last night. I have owned two P2's, (still have one) and the news of this got me excited! So I just clicked the order button. Thank you from Texas.