So it sounds as if the difference is similar to the difference between solid metal copper and silver cables.
I'd say less than you're used to with copper and silver solid cables @meambler ; whereas silver was distinct from copper with traditional solid cables; liquid silver cables are more plosive than copper as a refinement.
Solid silver cables can be very different from their copper counterparts from the same vendor in my experience. The difference between Splash Copper and Splash Silver is a refinement for those who want or prefer that slightly more defined edge to the sound. It's not as distinct a difference as you may expect.
I find that silver offers more definition than copper, in a general sense.
Agreed @jmcgrogan2