Chancing build in dry boots for neoprene socks

[Scuba fryd]

HI

Getting my boots removed and going for rock boots.
from what i hear is that you aren't supposed to were any inner socks when doing this i dive cold waters so i wouldn't want to freeze my feet.
they gett pretty cold with my set up right now. if i am supposed to have a sock in it should i then go for the size bigger or are they made so you can get a sock in? ( fourth element artic )
also i see you can get from 2 mm to 5 mm What to do any upside to any of them?

kinde

 

[happy-diver]

Dude you must wear socks, for to keep your tootsies toastie
But mostly you need room for the drysuit sock to fit over that the boot to fit over that and a fin to fit over all those