Has anyone added a blind spot mirror to there OE rear view mirrors?

Has anyone changed there OE rear view mirrors for a wider angle mirror?

I have seen this the "RiderScan" rear view mirror that is attachable to a windscreen or handlebar.

RiderScan Rear View Mirror Takes on Blind Spots

 

Where can you buy it?

 

Riderscan.com. I've seen the mirror on Amazon also, but the listing was expired. It's a company based in Scotland and comes as two separate pieces. I have seen mixed reviews and for the 70 dollar price tag wanted to see if there was some positive feedback on a cheaper option for a blind spot mirror. Any suggestions?

 

My blind spot using stock mirrors is no more than a slight turn to look.
I have my mirrors set so that I can't see the middle of a car right behind me and I have a good view of the next lane over in my mirror too.
Move your mirrors around before spending money.
Trust your eyes over the mirrors.