puzzled by cable routing

[Peter Stock]

I am reassembling a PR that has just returned from a repaint at Bike Friday.

But of course I foolishly didn't document its "Before" setup.
and now I am confused as to how to route cables and housing.

there are 3 cable stops at the front end of the mono tube. obviously for rear brake, Front and Rear Derailleur cables.

at the back end of the mono tube there are two "channels" which must be intended not just for strength but to take either bare cables or housing + cable.

I am guessing the isolated cable stop A is for the rear derailleur housing.

so then B and C.
one of them - B - has a cable stop at the bottom of the channel, that would take a piece of housing from the rear of the bike. so that channel B presumably takes just bare cable. which would be for..... the rear brake?

and then does C just take bare cable for the Front Derailleur which would loop under the BB and up to the fixing bolt on the FD?
I've never seen that setup before.

Peter Stock
Toronto Canada 

Peter Stock

Toronto, Canada