I recently went to 42's from 44's and I'm amazed at the difference! Feels like I'm riding a new bike. I'm pretty narrow in the shoulders and didn't think it would make much difference at all but I feel like my handling has already improved. The 'twitchiness' seems diminished. Wish I'd done it last year!

And if you like the bars who cares! I'm sure they're nice.
Now post some pictures.