I think when the caps are the same, the wire the same and the linking element the same shape, it makes for a nice neck piece, but lacks a bit of some wild element that would make for a truly engaging piece. Your experiments with these commercial elements are great--and very extensive. Maybe you could start to play with the idea of one link gone wrong, or one odd element/material that starts to creep into ti the linking system. I think both chaos and order would be stronger if they could play off each other.
Ok I will keep it in my mind ! I will try to go wild! Thank you rebecca!