As far as I'm concerned, one of the best suggestions is the one about moving the sign of peace. It's a frequent distraction, when people insist on keeping it up even after the Agnus Dei starts. Where it's done now, it seems like an intrusion. Much better elsewhere.
"Nuclear fission"? Very good way of putting it:
"The substantial conversion of bread and wine into his body and blood introduces within creation the principle of a radical change, a sort of "nuclear fission," to use an image familiar to us today, which penetrates to the heart of all being, a change meant to set off a process which transforms reality, a process leading ultimately to the transfiguration of the entire world, to the point where God will be all in all."