Correct Fender Welting

[BadgerA]

I know this has been discussed in the past,,, but here goes anyway. I am trying to determine the most accurate fender welting to original. I know a lot of people like the product made by Roy Nacewicz,,, but have been told by more than one respected model a restorer that the original welting did not have either the finish or pattern he uses. Instead, it was stated that the original was smoother and shinier. It was said that his reproduction would be more accurate to cars later in the 30s. Again, I am going for accuracy. What say ye?