Hmm well leather swells when it absorbs water.I went for a stroll in the creek the other day... left the boots outside for a bit. I got in deep enough that water did get inside the shoe, for better or worse. I really wish these were fully gusseted. But, after leaving them outside for a day they did shrink, or so it seems. It feels like my instep and ball is just marginally more "hugged", which I think I like, and it's taking some of the pressure of the laces around the ankle holding the boot on. Of course the kilties are also taking up some volume. I wouldn't want to shrink them anymore so I'm gonna throw shoe trees back in, and probably will add dubbins to prevent water soaking into the leather again.
By the way... this natural waxed commander... I haven't seen anyone but Grant Stone using it? Is it an exclusive?
Tree them and let them dry naturally and they should be ok.