Rich, I think the '69 Raleigh Pro was closer in geometry (72 parallel angles I suspect and long chainstays which are what, about 17"?) to the Holdsworth Super Mistral and other classic "all rounder" British lightweights. I am confused, however, as to if you are running this with 700 sprints or 27" wire-ons. Most of the all-rounder designs could take both but I am not sure about your model. I think all-rounders actually look better with 27"s as it diminishes all of that daylight between brake bridge and tyre.
As for the brake cable arrangment, this was the eminently sensible "bare wire" design that was all the rage for awhile. No one can explain to me why this was considered inferior to the much fussier use of cable clips and great swaths of heavy cable housing. Cable clips mar the paint and are great ways to trap sweat and moisture. Why this seemed to supplaint the bare-wire arrangement is just.. well dopey! Nor why all of this is nothing but fad. Rather like the centerpull vs sidepull brake back and forth.
Anyway, a lovely job and I am warming to "that" 1962-1970 Raleigh headbadge.
Peter Kohler
Washington DC USA