Decided to go Trend via Toolstation.
Getting a variety of 8mm & 10mm beech dominos, but Trend don't seem to do 12mm... they do 4mm, 5mm, 6mm, 8mm & 10mm "only". I do have a 12mm cutter for the DF700 but only use it on big stuff, like garden benches, which I'm not making at the moment...