So, I noticed that KZ totally cheaped out on the front roof-to-cap seam on my '17 Durango 1500. Silicon bead along the seam, covered by a 1+" wide seam of Dicor, EXCEPT for a gap of 3-4" at each end,...
I use both and both are great. The main thing is to check the roof now and then for any problems. Then fix with either one. I am equally impressed with both.