Haven't got any scales sorry.
The Tripowin Zonie certainly isn't twice as heavy as an eight core cable. As the number of cores go up, each core is thinner. That makes the cable softer and less memory prone. I prefer the handling of 8 or 16 core cables but YMMV.
I do have one 2 core cable which handles beautifully, original cable on the Fiio/Jade Audio JH3.
CVJ original cables aren't too bad compared to other cheaper IEMs, they have metal plug and splitter.
Tripowin and NiceHK have been two of the better handling cable manufacturers, that I have tried. Cables included with TRI IEMs have been good, so I'd feel safe buying KBEAR or TRI upgrade cables. TRN are pretty good bang for the buck (T2 16 core SPC, T4 8 core OCC or even the A6 6 core if you need a cheap cable with mic).