Cogan Hall, please shed some light

I hated working with them.

I've been reading around that they're are very stiff and difficult to handle, BUT you're giving me some hope, a tennis ball is quite small ;)

It’s been a while, but I seem to remember that different models were determined by the number of conductors or tubes. Because of their construction they can’t be bent or curved more than the diameter of a tennis ball. I found them to be nearly impossible to work with, and abandoned them quickly.

Wow...I haven't heard anyone mention that brand of cables in many years! I can't answer your specific question, but I do recall their unusual speaker cable design though. It was a hollow copper tube suspended within a black hose by round spacers. that encircled the copper tube at regular intervals. It was very exotic at the time.