On Sat, 8 Oct 2011 10:29:33 -0700 (PDT), NT wrote:

Lots of people assume so. But its not how it actually works. Dual
circuits are no more reliable than single. The advantage is the
ability to vary the relative pressures to some extent as the back end
rises up.

That sounds more like brake effort distribution rather than dual
circuit. I thought the latter had one diagonal front/rear wheel on
each of the two circuits.

--
Cheers
Dave.