Exactly the purpose of having them on my trip with relatively limited packing room for multiple shoes/boots. Socks won’t be the issue for me, I am as meticulous with socks as I am with my boots… maybe the issue I saw was exacerbated as I’d worn the Snowdon’s for 3 days in a row and they’d not fully dried out. Something I’d never dream of doing at home. But they did do a LOT of walking and standing in the snow on 2 of those 3 days and torrential rain on the first of the 3.Looks like a fantastic choice for the job! In the evening you can walk to the hotel bar in the same shoes I suppose.
Regarding the moisture I started to think there might be another cause for it which I have learned from my hiking hobby. Feet perspire a lot - really a lot - so the moisture might end up coming from inside the boot. You need to have good, thick socks, such as merino wool, which can absorb all that moisture, because no footwear breathes as much as feet perspire.
Well, just thinking maybe this might be the cause and not the welt.
The idea of the felt insoles is interesting, as there is probably just room.
Interestingly, I wore my Zug Islay for the first time in anger today, amazing to be reminded how stiff the Zug is when not worn in.