Maybe just lucky, maybe something to due with the environment the vehicle lives in. I don't know. I do know that we see sticking calipers on vehicles irregardless of the time frame of brake service or even on ones that have never had the brakes serviced. But it seems some brands tend to have trouble with the hoses, while others tend to have trouble with the calipers. And then some models have few, if any, of these problems. But we see more problems with the calipers it seems on these late model Mopars. But, fortunately, we aren't the only ones experiencing the issues. Which means that we are very likely to find replacement parts for cheap at the pick-a-part yards.