Hi Lew,
We're both right, as I see it. But the basic underlying point I wanted to convey in my response is that if low capacitance is required for a particular application, focus should not be placed exclusively or even primarily on unshielded designs.
Blue Jeans LC-1, btw, is a coaxial cable, with the shield (actually a double shield) serving as the return conductor. So comparison with an unshielded cable that is otherwise similar would not be meaningful or possible, as such a cable would not work. On the other hand, I agree that a cable design having both the signal and the return conductors within a shield, when compared with an otherwise identical cable having no shield, would have higher capacitance.
Best regards,
-- Al