[davepl]

There's a huge difference between NOS and repro on these. In particular the slot that receives the clip seems to be a different thickness, or depth, so the clips don't retain the reproductions well.

At least that's what I found - once I switches to the NOS pair I had the clips worked reasonably well. I imagine you might be able to "adjust" the tabs on the repros. Once you've tried to install, if they won't clip in, they're likely not deep enough, and if they're loose, too deep.