[mickmate]

Most Cobras I've seen and worked on have 3 door ferrules for the side curtains. The back two usually line up pretty good with the door top. The front one usually is crooked to the door. Your choice is line them up straight to each other so you can still slip the side curtain in or line them up to the door so they look good but won't let a side curtain slide in. If the car isn't painted some body work to split the difference will help.