So wow, that was something. Portugal offered 90 plus degree heat, fires in the hills, feet eating hard pavement, and some very, very nice people. The Lisbon to Porto stretch was as everyone has described and 7 out of 10, and 10 was about the number of hikers I met between the two cities, suffered tremendous foot ailments due mostly to incredible heat, distances walked, and self imposed equipment failure. Never knew feet could swell like that. Learned quite a bit to say the least. Met wonderful pilgrims along the way. Wouldn't change a thing for the world. But ouch.
Numbers of pilgrims starting in Porto and Tui were quite surprising. Advent of "tourist pilgrims" provided opportunities to remain calm and try not to judge. Numbers of pilgrims arriving in Santiago in October was surprising as well.
Took the Central Way until the opportunity to take the Spiritual Variant presented itself. Enjoyed that very much as well as the morning boat ride. So, consider it, you'll be happy with your decision.