If you do enough measurements on that new prompt then I don't see why this shouldn't be a paper. People overestimate the value of "grand developments", and underestimate the value of actually knowing - in this case actually knowing how well something works, even if it is as simple as a prompt. Compare with drug trials: Adderall only differs from regular amphetamine in the relative concentration of enantiomers, and th…
I'm not sure this is true.
While modern Adderall has a closely controlled mixture of multiple enantiomers, it hasn't always been this way.
Medicine historically didn't care nearly as much about racemic mixtures, and the possibility of stereo toxicity (eg Thalidomide).
Many drugs in modern human history, including mixed amphetamine salts, have been marketed with very little concern for racemic purity.