Thanks Eno for your thoughts on this....unfortunately I just ordered them both before seeing your post. Will give them a try.
The front one is very obvious improvement and very little negatives. The rear one is certainly more debatable if it's worth it.
I do agree you lose some headroom and it's probably more than an inch in some places. I don't see any wrinkles.
If you are curious run a string across the back.
That is the first post I've seen that has said the view impairment was that big of a deal to them.
You're not trying to read a license plate in the rearview mirror.
All you use the rearview mirror for is, is someone behind you, how close are they, is their blinker on, did they flash their high beam, etc.
So you really just have to drive and just "feel" if your driving is impaired. It's not. I completely forget it's there. My wife was worried to and she has not mentioned a word about it, and she surely would if it impacted here driving. It's surprising that you don't rely on fine detail in the rearview mirror. For backing up I tend to use sideviews and the camera not the rearview.
I'll be curious to see what you think.