I'm trying to put the front header mouldings on my hardtop,(2" wide pieces), and wondered if the mouldings should be first attached at the rear and then pulled down over the front or should it be attached at the front and pulled back to fit over the back retainer? I attempted to install it but seemed to have difficulty either way. I didn't want to kink the stainless by forcing it one way or another. Any tips would be appreciated.