I've seen both, in person, at last year's Nat's. Almost bought both types because I was going to use a '73 door on the driver's side (ended up modifying it to take the clips). I believe they were at First Place Auto Part's booth (the guys that sell the spoilers). Like you said, I haven't seen the specifically described in any ads either and FP's website doesn't even list ANY of those weather strips. Maybe a call to them would help. FYI, the ones I got said "Authentic Restoration Product" on the box, here's what I ended up getting.