Here is my .02 cents worth. When Dynacorn actually made their own bumpers, They were great! Very nice and they were the only aftermarket ones I would install on my customers cars. Then something happened around 2 years ago or so. They started to relabel bumpers they were getting from another source (shall remain nameless)and they were the worst bumpers in chrome and fit. Lately I have been using Drake bumpers and have had very nice results. Fast forward to last Saturday. I am currently working on forum member Morsel"s 66 K code fastback and he brought me in a rear bumper bought through NPD that was Golden Legion brand. I have not had good luck with this brand in the past (many years ago) but they must have recently done some retooling or something because it practically fell into place on the car and the chrome is extremely nice. I have seen many NOS bumpers and this chrome is far better than most NOS ones. The front bumper on his car (which I replaced almost 2 years ago) is also a Golden Legion and looks fantastic! Just my experience. Take it for what it's worth!!
