Roughed in the foam for the hills. The edge profiles were fairly carefully cut to allow the sections to be mix-and-match. The rest of the hills were bulked in with foam and hot glue, in a semi-random build. I used a utility knife to hack out the foam bits. after a trim with the knife, the next step will be a first contour with the hot-wire cutter, then some card profiles for the edges to make sure they line up. Then more hot-wire, the surform tool (a rough rasp like plane-tool thingy for shaping foam) and probably the Dremel to get into the tight corners. Then some drywall mud and terraining and detailing...and paint...
The foam was a nice bright pink when I first bought it. The newer stuff is a dull purple/pink. Seem fairly similar. The purple appears to be a finer grain. Cuts Ok with the hot-wire but I plan to do the shaping in the garage with lots of ventilation and a face mask for fumes and dust. The purple may have a lower melting point as my hot-glue tended to eat into the purple foam more than the pink.
Regards, Rob.