Looks like a very good system Jason.
The presentation lacked a bit of finesse, but the concept and production of the modules is admirable.
I only wish I had a locking system for my terrain like that for when an over enthusiastic punter leans over the modules and moves them apart on the table with his elbow, coat, or rucksack.

Why do I always notice the cleft in the terrain after taking the photo?
Rob.