I've practices putting mine in and I've not bent it yet. I start by putting it in the forward bottom corner, then tipping the back up until I can pop it in, then push it down until the bottom is seated, keeping an eye on the corners and vertical sides, keeping pressure off them by partially seating them as permitted.
Then comes the touchy part, bending the verticals just enough to get the top corners in. I can guarantee you that there was a lot of scrap created when a new hire went to work on the line learning how to put these in... it seems like there is NO room for play, just enough flex to get it in if you're patient.
And if you manage to kink it once, you've just crated a point where it is even more likely to kink next time.
Oh, and I've discovered that that blue painter's making tape they sell for house painters makes a good protective barrier against scratches, and if you stick it your pants first, it loses just a little more tack and comes off very easy.
