Rainbows in the Lehigh Valley Gorge

[Charlie B]

Todd, I don't know your method for ballasting but I use diluted white glue to hold it in place. I actually use the ballast to make any elevations, I used 1/4 in Luan for roadbed (cut to fit) and let the ballast run down over the edge to hide it. I had lots of ballast so this was no problem.  The gap between the roadbed and the base could be covered with ballast in your case too. The beauty of holding the track down with white glue is the ease to remove and repair. A little mist from a Windex bottle to get the old ballast softened is all it takes and the track can be lifted and cleaned ready for relay after the area is repaired. 

Charlie