We have the exact same mirror setup, and the blind spot is all but banished.

If you're set up just right, you'll see a car coming up behind you and if, for example, it passes you on the left you'll see the car drive out of your rearview mirror and right into your side mirror.

As it leaves your side mirror, it'll show up in your peripheral vision.

It does take a little getting used to, but I've been driving that way for a couple of years now and feel very safe.

Of course, if I'm changing lanes, I'll usually take a quick glance, just in case, but there has never been a time when a car has been there that I didn't know about.