Not a problem; happy to help. Everything from Redondela—a very agreeable town—onwards is common to the two routes, so I won't address that. But in general I concur with Andycohn above. There are occasional bright spots on the Coastal north of Vila do Conde: the towns of Esposende, Oia and Caminha were standouts. Those, though, are few and far between, and Andycohn's references to "little scenic variation" and "dull beach towns" did, I'm afraid, resonate strongly with me. A lot of the time I felt highly out of place weaving in and out among holidaymakers wearing swimsuits, eating ice cream, and buying inflatable water-wings and plastic knick-knacks at the beachfront shops. Too many of the night-stops were either excessively touristy and overpriced for my taste (Baiona) or grim and industrial (Vigo); too many of the days were spent either listening to, or dodging, vehicular traffic. It seemed to me as though I could have been plonked down along almost any random part of the Atlantic littoral from Calais to Faro and had much the same experience; only the waymarking (which, I concede, was excellent, if hardly required most of the time) gave me any indication that I was travelling a pilgrimage route.
The Central from Rates northwards was tranquil, rural, and restorative to my soul, even if, because of the inflexibility of my calendar, I was having to complete it a great deal quicker than I would have preferred.