Sure, but I would sell that system and get one that meets the specs so I dont have to try to find a wacked-out cable that matches it.
How user can possibly know that wire or system meets the spects? I prefer to choose cable for the system and not the system for the cable.
This reference is usually noisy due to the system voltages and ground-bounce. Very difficult to make it noise free.
Yes, that's part of the noise I'm talking about. There is no perfectly quiet system and there is no perfectly impedance matched cable. It is always compromise. In noisy system (external or internal noise) it is better to get fast switching transport getting more of reflections but in very quiet system it might be better to get slower switching transport to minimize reflections.
Even at 25nsec, the cable length helps however. the A/BX testing proves it.
Are you saying that, assuming some impedance mismatch, 1.5m cable will be always better than 6" cable (that I used not long ago)? It doesn't make sens. There will be no reflections in 6" mismatched cable, assuming average transport (with 25ns transitions), but a lot of reflections in 1.5m cable. Even if the first reflection misses originating edge there will be consecutive reflections. There are techniques to predict effect of multiple reflections on the signal (Bergeron Diagrams) but it is very complicated task.
As for the measuring the jitter - effects can be measured but I agree with Al that it will be useless since it will depend on all the factors he mentioned. Measuring jitter effects at particular frequency in particular system in particular home etc. has no value to anybody.