Zu Mission vs Event Cables

Do any of you know differences sonically / physically between the Zu Mission and Event lines of cables? Mission fairly new, Event much newer and pricier.
I have a pair of Zu St Julian calbes for sale on AG right now, they are the predecessor to the mission cables
Events are silver based where Mission are copper. I have missions...... They replaced Gedes and Varial mk3. Ask the Zu guys, Sean or Gerrit........ For my speakers they advised staying with Libtecs.
Both Mission and Event interconnects use the Gore geometry to isolate the conductors from electromagnetic interference. This makes them very beneficial for a tonearm cable, or a cable between step-up and phono. The cables look identical in size and geometry. They only differ in the conductor material.