It was already three months back that I posted my question here I see..
My system has changed a little in the meantime, (other loudspeakers) my new amplification was powerwise not up to the task to let de Guarneri's really do their thing, especially in comparison with my previous power amps.
I kept experimenting with cable's though and compared to my "guarneri system" it was more or less a one brain side improvement.
My system sounded technically a lot better, but did not touch me as me previous system did.
The HiDiamonds I owned back here kept crawling back in my memory and after some time I just took the shot and ordered a combination of HD7 sc, ic and power 3 cables.
I am not going to repeat everything that is already mentioned so many times on this forum but man.. Mr. Worldwidewholesales you were right!
Everything I had before is technically dwarfed by the sound of my new system, and even more important, emotionally it touches me as never before.
Beating my beloved old Guarneri's at their own game in every way.
I have finally found peace, what started as a nice experiment (trying out different brands of cables) became frustrating after to many tries.
Who knew my answer was found in a price range less than a third of some others I tried.