So on this bending. I have to ask, exactly how much do you bend your boards? Do you think this will happen to your prints? I am assuming that you do this just to make sure the bond is strong, but I would suppose that if the print is on there, I wouldnt expect it to just fall off.
I do flex mine about 3 inches across the whole print when cool. If I don't hear a pop, I let it go. I really don't expect them to either fall off or to be flexed as I expect them to sit in a frame for the rest of their life.
Outside a frame, all sorts of evil can happen to a print. The least of which worry me that someone will bend it over their knee.