I've been using a ProPride for 7 years now with the rig in my sig. I don't have an exhaust brake but I do down shift on hills. I have never felt the bump on hills.
I have felt the bump other times when the trailer brakes don't apply early enough while braking sort of hard. It's something that can be felt, but I can't say that it ever disrupted the truck or trailer. I don't even think my wife notices when it happens. It's that subtle.
2018 Ram 3500 CTD, 4X4, Laramie, SRW, SB
2021 Imagine XLS 22MLE