On this topic, what is the purported benefit of the double waterlock sole? I have a few (CXL chukka, whiskey Indy), but I find they don't seem to offer any advantages on wet pavement. I've seen retailers say that the sole lasts longer because the oil protects them from water, but Alden's regular double leather soles last a long time as well. I understand the advantage of the single flex welt oiled sole (found in suede chukkas, loafers, etc) - the oil makes the sole softer, which makes a more comfortable shoe out of the box (and goes well with styles like suede loafers or chukkas where the user may go sockless). But I haven't been able to find a real advantage of the double waterlock.
The waterloc soles are designed to keep water from getting into the pores of the leather, which (1) extends the life of the leather sole, and (2) keeps your feet dry. They are better suited for wet conditions than regular leather soles. My ravello LWBs from Alden DC have the double waterloc, and, if it would have been possible, I would have probably gotten all my LWBs on double waterloc. Based on my experience, I would also say double waterloc (vs. standard double leather) makes the shoe slightly more comfortable out of the box.