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We used the "backwards falling poppers", Popper falls backwards onto a "seesaw" (only way I can describe it) which has a clay sitting on the other end which then flys into the air and you attempt to...

we used to have clays on the back of poppers, shoot the popper and the clay got launched in the air and shot (at). I know one local 3 gun shooter who would do OK at what you describe

Steel plates don't fly at 40mph nor change direction :)

And if I concentrate on the shot I miss, If I see the rib I miss but if I concentrate on the target, mount the gun and shoot quickly I do much better :)

Its not the muscle memory its the subconscious aiming that will be the problem maybe?