Best towing mirrors

I have a 2015 and am also trying to add factory tow mirrors. Dealer has them plug and play but way too much money, @ $1700 just for mirrors. CIPA makes a set that will still allow the use of the BLIS, turn signals, puddle lamps and they are a simple slide on. Local dealer let me try a set and bang for the buck, less than $100, they are good, not great. The mirror itself is shorter than the factory mirror and has a vibration at highway speeds. I had difficulty adjusting mirror to avoid seeing the same thing in both mirrors and it made what I was seeing seem to be at two different distances. Made backing so much easier but driving I found myself using the stock mirror and doing the lane wiggle to see down the side of my trailer.