Yep !
Worked great !
Simply bed the first course then off you go . I had to add rebar in as I went . I shuttered any corners before the pour . Poured the whole lot in 1 go ! ; few minor issues but no real problems
I insulated on the outside . Also land drain at base . Internally I will have membraned walls going into an internal drain then out to sump .
The main thing is that stepoc is an easy diy approach - Christ ; I did it so it must be ! .