I've got the mid rate coils with 5100's in the rear but also have a set of timber Grove airbags installed.
I haul a wide variety of things. Light stuff like a small utility trailer that holds 4 kayaks, and big stuff like dump trailers hauling rock (probably 15-16k weight) and a 38ft 10k travel trailer.
I don't have issues and it's not a big deal to inflate the air bags when I connect up to a trailer.
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I enjoy the ride of the midrate when not hooked up to anything. They are better than stock imo.
If you want a closeup picture i can grab one in a few days.