You seem to be right, as far as I can see it. I use vbrakes which are pulled by the side and low also. This way my cable can drop in a gentle curve straight down to the brakes.
BTW, why does the S-curve on his new LHT bothers so much the OP? Azesty, are you experiencing braking problems which are related to this. I had a complete prior to my present build and never had a problem really.