Your socks combination sounds fine. My question would be: How often were you changing them out? On a trip such as that, if any rain at all were anticipated, I'd suggest carrying at least one pair of extra dry socks, two would be better yet. Store them in a plastic bag to ensure they really ARE dry. You'd want to change socks at least once a day or whenever they got wet, placing wet socks in a spot where they could dry out (hang them in the tent at night, for instance, or in a mesh pack pocket if the weather is dry for a bit). It's also a good thing either to go to bed without socksso your feet thoroughly dry outor just wear light, dry liner socks at night.
That said, it's not at all uncommon for extra blisters to form when it's wet. Your boots deform a little and, as I said, damp skin simply blisters more easily. So it's also prudent to carry water-resistant medical tape, in case the only solution is to tape up the sore spots. A little antibiotic cream would be useful, tooan infection could turn a minor blister into a trip-ending abscess.
Read "Ten Easy Steps to Happy Hiking Feet" from Outside Online's partner site GORP.com for more advice on keeping your dogs smiling.
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