If you want it to look nice it should not stop at the edge of the cockpit trim or the windshield bracket. I went for going under each piece. I don't know about how others have handled this but I found it very useful to take the old trim, if you have any, and practice making ends that did what I wanted without kinking or looking "forced". It also takes a bit to shape the tip that abuts the headlight ring. I can take some photos of how I did it this weekend if nobody else posts anything. I made several attempts at using various shaped small anvils (pieces of junk, metal or wood), that I used as forming dollies. Once I found a technique that resulted in a good fit I did the new pieces. I had to make a couple of the short pieces more than once. Do not forget that you can cut them shorter all you want but you can't lengthen them even once. Some of my finals aren't perfect but after a few weeks I certainly didn't notice. The concours books have good pictures if you have access. Use what ever works for making the shapes you need. One last note, do not pull on the galvanized tabs too hard when you are fitting the bead to the seams. It is easier than you think to pull one out.