Ok I've been wearing the 440 lows for a few weeks. First week was rough, going to a cupsole from a life in vulcs was one obstacle, but the inside where the arch is was killing my flat flipper feet, just cramping and general bad vibes, and just feeling kinda too tight mid foot. I can still feel the pressure on my arch, but now it just feels nice. Finally broke in I guess, but probably aren't the perfect shape for my foot anyway. Loving the heel on them, soft heels on vulcs were what made me start looking for a cup.
Also, it felt like I was hovering between the concave for a while, and I couldn't ollie in them for a good while, just felt like I was on stilts or something, totally seperated from my board, but now that's settled down and I can control my board again.
So yeah, loving them. Holding up super well too, they feel like a really strong shoe so far.