You guys are killing me with those slot car tracks. I can remember my brother and I had an Eldon slot car track back in the day. Then we discovered our neighbor had slot cars of the big track kind, made out of piano wire and brass tubing. The rest is history.
Today I broke down and took my sander to the Heywood-Wakefield cabinet top.
Tomorrow it gets some stain.
I was able to get 90% of the water stain marks out with the sanding. Top is still smooth.