I used the cipa slide one for a couple trips but a friend convinced me to put on after market tow mirrors on the truck. I highly recommend it. Visibility was much improved. My turn signal was also in the mirror, no issue.
I have used the CIPA mirrors for about 4 years. First on my Expedition and now on my F150. I have the same LED turn signal mirrors you have and they don't get blocked by the CIPA's. I've never had the vibration issues that some have mentioned. I'm perfectly happy with them
2015 Jayco White Hawk 28dsbh
2014 Ford F150 Lariat 4x4 w/Ecoboost
H/D tow package
2005 Forest River Rockwood 2601 (Sold)
2011 Ford Expedition XLT (Sold)
2008 Jeep Wrangler (Just for fun!)
I've been using the CIPA slide on style with no issues. I did however use some foam weather striping so they didn't scratch my mirror covers and very little no vibrations. Eventually when I can cough up $500-750 for towing mirrors I will put those on.