I'm not sure how to describe this, but my friend has an iPad Air with a smart cover that, when open, clings to the back b/c of the magnet. I have a smart cover on my rMini that seems to try to cling, but if I let go even a little, it comes crashing down. On my friend's Air, you can totally let go and it sticks to the back. Did I get a dud smart cover or is this normal behavior for the mini? Because maybe the magnets aren't that strong either in the device itself or the smaller smart cover? Thank you!