So, I had my first layout going quite well with coarse ballast, then had some problems and hated the look. I basically removed all track piece by piece and removed all of the old ballast (it never was really solid, ever, except in some spots.) And went over all the grass to remove all that was not down good. So, I now have a stripped down bed and track (black bed), with segments of grass. I am using fine ballast, and used the water soap stuff, and spray glue. Train ran nice before I sprayed it, but then got a coating, and ran all choppy. How do I lay the ballast, from beginning to end is what I am asking, Thank You!