I finally got annoyed enough at the skybox not joining seamlessly that I fixed it. I did not fix it well, but at least now there isn't a seam.

Changed the default status of the "highspeed" toggle to be on, and fixed the rail behaviour so that the lane dividers don't go all dashed when you go through a corkscrew.

Added a highspeed toggle to the lua file. The effects of this toggle:
-Makes the track opaque
-Reduces the rail pop-in seen in super fast modes.

Changed the shader of the end cookie back to RimLightHatched

Reverted coloured spike outlines as they were detrimental to player performance on high block density songs.

Initial upload