@Oman posted:That's an advantage with cork, that I didn't consider when I went with a foam roadbed.
I have a poor transition. I'll have to remove the foam roadbed, sand down my plywood sub-roadbed and re-install. I imagine cork is easier to sand than plywood.
I have never tried foam, but I can see where it would be difficult to taper. You are so right; cork is certainly easier to sand than plywood! The thing is, it is easy to take off too much and get dips and when it gets thin then the edges crumble off haphazardly. 
It doesn't have to be perfect because I paint it gray first before putting track down, just to make it look a bit like ballast. Later, I'll ballast and won't know there are such imperfections.
