Good stuff Giles, let us know how you get on. I played a game on mine this week and the pile is just a little to long for my taste and I wouldn't mind shaving it down a bit, but it's a big area.
I liked the way the terrain I placed on top of it sunk into the pile, very effective, but figures based on pennies struggled with the pile but were OK on sabot bases.
These were 28 mm figures and terrain I don't think the mat would be suitable for smaller scales.