The SLJ probably wouldn't be quite as good. Modern derailleurs virtually all incorporate the last two great innovations in non-indexing RD's: the Simplex spring loaded upper pivot and the SunTour slant parallelogram. The SLJ didn't have the slant parallelogram.
Regards,
Jerry Moos
Houston, TX
> Skip wrote about how much better the Simplex SLJ rear derailleur shifts
> compared with the Campagnolo SR he had been using. Here's something I'd
> been wondering about for a while: how does the SLJ compare with a modern
> derailleur like Campagnolo Chorus, for example, assuming both are operated
> in friction mode on a six or seven speed freewheel?
>
> Regards,
>
> Mark Encarnación
> Bellevue, WA
>
> --
> Mark J. Encarnación <mark@encarnacion.org>