I know this answer isn't as high end as you've got in mind from the example brands you listed, but I've had a similar issue. I have four pairs of Aldens in my regular work rotation, but I bought a pair of Ecco Seattle Walkers just to walk around in and now I find myself working in them more and more. They are slip on, although they have them in lace up also. Rubber soled and they feel like a dream on my feet. I think its the forked heel that cradles the Achilles that...