That sounds good. I didn't like my loaf with spelt instead of ww/rye, but I usually go 15% ww, 5% rye and will try adding 5% spelt.
Got an oval dutch oven yesterday:
Loaf on left is 50% WW. I thought my rounder oval banneton shape might fit in a round dutch oven but it didn't and got mishapen. Really happy with the shape of the longer loaf in the new dutch oven though.
Left them in a little longer to try to develop the crust but a got a little char in places so I need to check more than every 5 minutes.
I made the 50% ww by combining two separate doughs so it has a bit of a marble look
Crumb on the other, which I did the same way but with 20% ww
Kvass tasted like cider but a bit too sweet. Not much carbonation, less than a cask conditioned ale, and not as good as beer, but will try again with less sugar and see what happens.