One last go at roof rail seals

There have been plenty of posts about Steele Rubber, Metro, Precision Performance, Year One, etc. weatherstripping and seals, but none have definitively answered my burning question...

Can anyone tell me which of these, if any, have a roof rail seal that actually works correctly for a '74 Duster? I'm talking about no installation problems, perfect fit, and absolutely no leaking.

Is this a pipe dream?
Jerry