Had anyone done this? Besides the headphone jack, the only difference is the camera cutout. Can a iPhone 7 case be modified (ie camera cutout trimmed) to fit an iPhone 6S? I'm specifically talking about the Spigen Flip Armor case. http://www.spigen.com/products/iphone-7-case-flip-armor?variant=25542300417 I need to find a way to get this to fit on a 6S. Engineers, please advice.