Thanks, I did catch that, interesting and timely, just sayin'. For the heck of it I messed around with WS fine ballast since I have a bunch. I placed some parchment paper on concrete floor, spread out some WS ballast and rolled, crushed it using a marble roller. Regardless of what it is made of, the ballast crushed down a little more to look promising for an ultra fine effect. The R&D looked good so will try a full blown demo in the future.