OP - no brainer for me when I moved to all OCC solid core cabling. I make all my cables and you can find OCC bulk cabling and low mass connectors (ETI/KLE, AECO, etc) at reasonable pricing from several places. Partsconnexion and Venhaus being my two go to sources.
I agree with others that there are so many different variations out there and you really need to build/listen/eval based on your system or systems. Fun for us DIY'ers that like this sort of thing.
I've been experimenting with several different configs and found the "Helix" design with OCC copper has won out without question.
For me, I'm not looking to change/color the sound as some cables claim to do. I have always followed the adage of good conductors, good connectors (or no connectors) and secure connections get me where I want to be.
@pindac - I finally should have my AR Triple C XLRs built this week. I'll post my impressions over on the DIY Helix thread...