Since each case is probably different for many reasons, this is another topic worth learning about and then forgetting about most of what people will say about their particular experiences for the most part most likely.
TBG of course will be all over it and others may join in as well in order to benefit from discussions on nebulous topics similar to whatever nebulous and highly questionable product it is they might be hawking in a similar manner.
THen tbg will tell anyone who thinks its a waste of time that they add no value because everyone really enjoys wasting lots of time on nebulous audiophile topics.
SO lets cut to the chase and move on to more important things with our lives, unless this is a topic that truly burning for you, which might be the case for a select few, but not most.
No two cart setups are the same and all will sound different at different times. They are mechanical devices so expect things to vary over time depending on many things, similar to an automobile.
OK TBG, you can tell me I offer no value in these forums and I should leave now....