You mean no apparent problems?
You can look at it many ways. Subjective-how the car is handling or the clunk. Objective-leaks or seepage at the very top the strut housing.
Apparent-subjective or objective.
Subjective is very hard to pin down. You may think its ok but really it has lost pressure or balance and you may not know it. Is the clunk the DRC or a loose clamp? Again very hard to pin down. Chances are your DRC is leaking or has leaked.
Objective is alittle easier. Jack up the car and pop the wheel off. Open eyes and look for oil seepage. What if the leak was old and the oil was washed off?
All in all, find the dealer that has knowledge of the problem and made the effort to make sure the fix is up to speed with all new special tools and the such.