Comparative of 'smart' where more than one adjective is involved

Solution 1:

Perhaps it would be a more smart idea if we didn't lecture about proofs of other's native linguistic abilities, but in any case, I think you both may be considering the wrong question. The crux of the matter isn't that there are two adjectives involved (here smart and sophisticated); it's that Rathony wants the single adverbial comparator little more to apply to both adjectives, a rhetorical device sometimes classified as zeugma, the combination of parallelism and ellipsis. What's meant is

[1a] a little more smart and a little more sophisticated

and that cannot be accomplished with the inflected comparative:

* [1b] a little smarter and sophisticated