Thanks for the info! So are you saying the spacer is a third piece in the visor? Or just on the bottom side of it? The WTF visor has plenty of plastic to not need a spacer for width, but I have seen many use an extra piece on the underside to help hold it together. I'll also be using Devcon to fill the seam, per Walt. It was amazing to work with for putting together the two halves of the main helmet.
And that red line you marked, for some reason, my magnets slipped a bit before I took the pictures, it lines up much better than what is shown. May need to trim some more though so it doesn't have as much stress on it and it stays in place better.