I was reading this article on something the author referred to as "Bartok substitutions," which are dominant subs whose roots are part of the same fully diminished chord as the V7. The tritone sub and the bVII7 sub got good reviews, but the remaining III7 sub is supposed to be the one that doesn't work so great. I know that Rachmaninoff used it, though, as a way to deceptively resolve to the relative major of a minor tonic. What are your thoughts on this III7 dominant sub?
seems legit.  verse of 'don't dream it's over' does that. chorus of 'sk8er boi' also does it. and many more examples i can't think of right now