I never thought I'd be asking this type of question, but here goes: I have a Mophie Juice Pack Plus for my 5s (Space Grey), because I assumed that battery life would be terrible. It's actually far better than I expected, so I intend to use Mophie mainly on weekends or when traveling, and use a Pixelskin HD the rest of the time. My question is: The 5s fits pretty snugly in the Mophie case, and I wonder if over time, putting it in and out of the case once a week is going to wear on the anodizing. Any frequent case changers out there with any experience on this? I figure if it isn't an issue with the Slate Black 5, it won't be with the Space Grey 5s. Yes, I realize that I shouldn't care, and the phone's in a case, for God's sake, but the phone would look terrible with bright silver chamfered edges! Many thanks.