Someone asked this earlier but how's the sizing on the 425s?
I wear an 11.5 in 212/213s and 420s (12 in most Vans)
I got some of the blue/orange 425s. I have very long toes on my relatively normal foot and due to years of marathon running, messed up toe nails, which means I like some space between my big toe and the end of the shoe. I am also in the UK, which throws things off with new balance as Vans US to UK is a whole size different, whereas NB (and Adidas) is 1/2 a size difference. I wear US 11.5 in both 440s and 425s and Vans slip-ons (can't skate in Vans anymore), BUT, i have ample toe room in all three, so if you like your shoes fitted, you may want to size down 1/2 a size.
For me, the 425s are going to be for chilling, the heel lock for me isn't the best, and I get some lift. I think its because the middle of the outsole is an extension of the white cupsole, and its very stiff, which means when i lift my heel/go on my toes, the shoe doesn't bend that much. Maybe if I had gone half a size down this wouldn't be an issue, but like i said, i like a bit of toe room.
Personally, I am sticking with the 440s. Hope that helps.