I say keep 'em if you got 'em.
The funny thing about these types of threads is normally if someone says they hear or even hints at hearing the slightest differnence, the 'cable experts' come out in droves to say it wasn't a double blind test and the difference is strictly the placebo effect. Then go on the offensive.
Yet if some one says they heard nothing, or really couldn't tell, there are rarely any comments about double blind testing or placebo effect. It seems if the results are what the 'experts' want, they are happy and keep quiet or use it of an example of why cables make no difference).
Jack
(FTR, I think cables make little if any difference and without a DBT any results or skewed)