-If you have ever been in an automotive plant paint line you would understand what I'm talking about. You simply are never going to get the level of adheasion that the factory does in an aftermarket environment.
I have several times, and I do understand what you're talking about. But, from a practical standpoint for a consumer; my point is just that a reputable bodyshop/dealership will offer a lifetime guarantee in writing on any work. (Using repair products and techniques warrantied for life by companies like DuPont, PPG, Sikkens, etc)
No big deal though; we can just kinda-sorta disagree on the issue. No biggee.