My DH switched from a standard double to a compact a few years ago, and he has often said that while the compact is easier for climbing (and at our age, that's a big plus), it makes it harder to keep up with the guys. That sort of logic may be why people object to the idea of switching to a smaller big chainring--you'll limit your speed on the upper end. But if that isn't a problem and if it will give you more gearing options, then I don't see why it wouldn't work.