Actually, yeah, I do. what you call a design flaw I call a consequence of an ingenious system. The idea of a single set of armor that re-arranges itself was brilliant and and one of the most uique things about Den-O, along with the actual physical incorporation of the rails along the body into the suit mechanics(which got ramped up when Climax Form was introduced). Besides that, there was also the whole concept of the DenKamen, one of the rare ocasions that put the "Mask" in "Masked Rider"(which was the official series name back then)