Yes, I would recommend them. I use the clip-ons. Like the CIPA ones, but a different brand. They vibrate quite a bit, but like someone else said, I'm interested in knowing IF there's a vehicle there. Only thing that bothers me about the vibration is I'm afraid I might not be able to see if a tire blows. I've never had it happen, so I don't know if I would be able to see it with my mirrors.
I have towed short distances (like home from the storage lot when I forgot my clip-ons in the garage) and I have to adjust my factory truck mirrors WAY in to see down the side of the trailer which means I can't see next to me at all unless I lean WAY forward. No worries for the short drive home from storage though, it's all 2-lane roads.
2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)
Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!