I like that the performance of selections are based on personal experience. I am sure for a given configuration the perception of performance would vary.
I have been an admirer of the NR since about 1968. It is like a Ducati Naked bike with just the material needed to perform and exposing the mechanics of how it works.
My experience reflects most of the negative comments, especially the disappointment on the Motobecane Le Champion with Suntour Ultra 6 with the matching chain.
LC_Drive_01 on Flickr
The Super Record was not much of an improvement until I used a limited range block. It shifts perfectly, for C&V on the '83 Colnago with a, perish the thought, Regina 13/22 7 speed using a PC870 chain.
P1040377 on Flickr - Need a new set of pictures!
With the limited riding I do, the more recent Campagnolo Racing T RD and crank on the Pin Montello do the job I can't do on the Colnago, 13-26 block, 52/42/30 rings. The FD happens to be a Record 10v that was affordable on the bay.
P1050228 on Flickr
I don't have much riding time on the Trek 760 but enough o tell you the Suntour Superbe Pro brakes and indexed shifting rival any of my other bikes.
P1040452 on Flickr
But that's just my limited experience.
I have a V-GT for a '74 Raleigh GP Mixte which hasn't worked out yet.
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iab - How about the Campagnolo Cambio Corsa? Talk about historic.